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July 29, 2014

Search: A 2.0 particle moving along the x-axis experiences the force shown in the figure . The particle\'s velocity is 4.7 at

Number of results: 28,006

physics
A particle starts from the origin at t = 0 with an initial velocity of 5.4m/s along the positive x axis.If the acceleration is (-3.4 i + 4.9 j )m/s^2, determine (a)the velocity and (b)position of the particle at the moment it reaches its maximum x coordinate.
February 7, 2013 by Anonymous

phyysics-please help!
an arrangement of four charged particles, with angle θ = 34.0 ˚ and distance d = 1.50 cm. Particle 2 has charge q2 = 8.00 10-19 C; particles 3 and 4 have charges q3 = q4 = -1.60 10-19 C. What is the distance D between the origin and particle 2 if the net ...
January 14, 2011 by Anonymous

Physics
The function ax(t) describes the acceleration of a particle moving along the x-axis. At time t=0, the particle is located at the position x0 and the velocity of the particle is zero. ax(t)=a0e−bt The numerical values of all parameters are listed below: x0=980 m a0=500 ...
September 1, 2012 by Natalie

physics
An unstable nucleus of mass 17x10^-27 kg, initially at rest, disintegrates into 3 particles. One of the particles, of mass 5x10^-27kg, moves along the positive y axis with a speed of 6.0x10^6m/s. Another particle, of mass 8.4x10^-27kg, moves along the positive x axis with a ...
November 8, 2007 by Anonymous

Physics
A scientist has devised a new method of isolating individual particles. He claims that his method enables him to detect simultaneously the position of a particle along an axis with a standard deviation of 0.12 nm and its momentum component along the axis with a standard ...
August 16, 2010 by Brian

Physics...Help please
The problem is from fundamentals of physics 9th edition by halliday. Here is a free download of the book since I couldn't post the graph (I had to write out link since site doesn't allow links to be posted): tripplew period sendspace period com/file/shrz0x I am having trouble ...
September 23, 2011 by Linda

physics
A particle starts from the origin at t = 0 with an initial velocity of 5.5 m/s along the positive x axis.If the acceleration is (-2.8i + 4.1jm/s^2, determine (a)the velocity and (b)position of the particle at the moment it reaches its maximum x coordinate.
October 16, 2011 by julia

Calculus
When a particle is located a distance x meters from the origin, a force of cos(x/4) newtons acts on it. How much work W is done in moving the particle from x = 1 to x = 3?
December 4, 2011 by Ethan

physics
The position vector r of a particle moving in the xy plane is r=2ti+2sin[(pi/4)t]j , with is in meters and t in seconds. (a) Calculate the x and y components of the particle's position at , and 4.0 s and sketch the particle's path in the plane for the interval . (b) Calculate ...
March 10, 2013 by Anonymous

Calculus
Two particles move along the x -axis. For 0 is less than or equal to t is less than or equal to 6, the position of particle P at time t is given by p(t)=2cos((pi/4)t), while the position of particle R at time t is given by r(t)=t^3 -6t^2 +9t+3. 1. For 0 is less than or equal ...
December 19, 2012 by Madeline

Calculus
Two particles move along the x -axis. For 0 is less than or equal to t is less than or equal to 6, the position of particle P at time t is given by p(t)=2cos((pi/4)t), while the position of particle R at time t is given by r(t)=t^3 -6t^2 +9t+3. 1. For 0 is less than or equal ...
December 19, 2012 by Madeline

calculus
A particle moves on the x-axis so that its velocity at any time t is given by v(t) = sin 2t. At t = 0, the particle is at the origin. a)For 0 ≤ t ≤ π, find all values of t for which the particle is moving to the left. b)Write an expression for the position of ...
April 30, 2012 by Naseba

Physics
A particle starts at the origin at t=0 with an intial velocity of 5.0m/s along the positive x axis. If the acceleration is (-3.0,4.5) m/s^2, determine the velocity and position of the particle at the moment it reaches its maximum x coordinate. You can't use a calculator.
September 6, 2013 by Rebecca

Physics Important please
If the 3e charge is at the origin and the Magnesium nucleus is 3cm from the origin in the +x direction, at what position (in centimeters) along the x-axis should an electron be placed so that it (the electron) experiences no net force? x =
November 8, 2013 by sied

Math/ Calculus Please HELP!!!
The following table gives the velocity v(t) (in feet per sec) at different instances of time t (in sec) of a particle moving along a horizontal axis. t 0 4 8 12 16 20 v(t) 43 42 40 35 25 5 Estimate the distance traveled by the particle between t = 0 sec and t = 20 sec using 5 ...
April 1, 2013 by Marto

Physics
F=6kt This force acts on a particle of mass "m" that moves along a line. If the particle starts from rest, determine its velocity and position at time t.
November 12, 2012 by shawn

physics
A 10 g particle has the potential energy shown in a graph with the y-axis label U(J) and the x axis is labeled in cm. There is a diagonal line from 4 J down to 1 cm and the line levels out on the x axis to 3 cm and rises again to a height of 2 J at 5 cm and levels out to 7 cm ...
December 2, 2009 by Ashley

physics
1.Give examples of a one-dimensional motion where (a) the particle moving along positive x-direction comes to rest periodically and moves forward. (b) the particle moving along positive x-direction comes to rest periodically and moves backward. 2.Give example of a motion where...
October 14, 2012 by help me out it's urgent

Physics
3 charges are arranged along the x-axis. q1 = -4.50 nC is located at x = 0.200m q2 = +2.50 nC is located at x = -0.300m q3 = is a positive character located at the origin. What is the value of q3 for the net eletric force on it to be 4*10^-6 N? I found the charge on q3 to be...
January 16, 2012 by Kyle

Physics
Can you please provide me a starting point for these two questions Question One: Three charges are located on the +x axis as follows: q1 = +26 C at x = 0 m, q2 = +13 C at x = +2.0 m, and q3 = +42 C at x = +3.5 m. (a) Find the electrostatic force (magnitude and direction) ...
August 30, 2007 by Jim

Physics
"An alpha particle (a helium nucleus) is traveling along the positive x-axis at 1 250 m/s when it enters a cylindrical tube of radius 0.500 m centered on the x axis. Inside the tube is a uniform electric field of 4.50 X 10^-4 N/C pointing in the negative y direction. How far ...
February 21, 2011 by Anonymous

Calculus
A particle moves along the x-axis with the velocity given by v(t)=3t/(1+t^2) for t >or equal to 0. When t=0, the particle is at the point (4,0). 1. Determine the maximum velocity for the particle. Justify your answer. 2. Determine the position of the particle at any time t...
December 19, 2012 by Madeline

physics
4)A bug is moving east at 1 m/s. A semi-truck is moving west at 45 m/s. They collide and the bug is splattered across the windshield of the semi and now travels west.At the point of impact, which of the following is true about the force of the bug acting on the semi and the ...
April 1, 2008 by Jon

physics
4)A bug is moving east at 1 m/s. A semi-truck is moving west at 45 m/s. They collide and the bug is splattered across the windshield of the semi and now travels west.At the point of impact, which of the following is true about the force of the bug acting on the semi and the ...
April 1, 2008 by Jon

calculus
a particle moves along the y axis so that its position at any time t, for 0 is less than or equal to t which is less than or equal to 5, is given by y(t)=t^4-18t^2. in which intervals is the particle speeding up?
January 18, 2011 by kriti

Physics
An electron moving along the positive x axis perpendicular to a magnetic field experiences a magnetic direction in the negative y direction. What is the direction of the magnetic field?
April 2, 2008 by Jessica

Physics
A charged particle A exerts a force of 2.39 N to the right on charged particle B when the particles are 13.3 mm apart. Particle B moves straight away from A to make the distance between them 16.1 mm. What vector force does particle B then exert on A?
February 6, 2010 by Jan

Physics
Three uniform spheres of masses m1 = 3.50 kg, m2 = 4.00 kg, and m3 = 6.50 kg are placed at the corners of a right triangle (see figure below). Calculate the resultant gravitational force on the object of mass m2, assuming the spheres are isolated from the rest of the Universe...
June 20, 2013 by Josie

Calculus
An ant moves along the x-axis with velocity given by v(t)=tsin(t^2), t is greater than or equal to zero. Given that x(t) is the position of the particle at time t and that x(0)=3, find x(2) Find the total distance traveled by the particle from t=0 to t=2
February 26, 2011 by Hannah

AP physics
A particle moving uniformly along the x axis is located at 17.9 m at 1.45 s and at 3.9 m at 2.7 s. Find its displacement during this time in- terval. Answer in units of m What is the average velocity speed during this time interval. Answer in units of m/s
September 30, 2012 by Laura

Physics
A particle moved along the x axis with a constant acceleration of -85.0 meters per second squared. The initial position of the particle was at the origin and its initial velocity was +325 meters per second. Find the position of the particle at T=4.0 seconds. Please walk ...
June 11, 2012 by Jen

physics
An alpha particle, the nucleus of a helium atom, is at rest at the origin of a Cartesian coordinate system. A proton is moving with a velocity of v towards the alpha particle from the positive x axis direction. If the proton is initially far enough away to have no potential ...
September 29, 2008 by alexis

physics
A 10-kilogram body is constrained to move along the x-axis. The potential energy U of the body in joules is given as a function of its position x in meters by: U(x) = 6x^2 - 4x + 3 The force on the particle at x=3 meters is? Here was my thinking.... U=-W. So, W(x) = -6x^2 + 4x...
January 20, 2008 by Hannah

Calculus
A particle, initially at rest, moves along the x-axis such that its acceleration at time t>0 is given by a(t)=cos(t). At the time t=0, its position is x=3. How do I find the position function for the particle? I tried integrating the equation but got confused.
October 17, 2011 by Anonymous

Dynamics
The acceleration of a particle moving along a straight line is inversely proportional to its speed with the constant of porpotionality being k. The body starts from the position s = x0 ^i with initial speed v0. Determine the velocity of the particle as a function of time t. ...
January 22, 2013 by Devin

Physics
a metal sample carrying a current along X-axis with density Jx is subjected to a magnetis field Bz(along z-axis). the electric field Ey developed along Y-axis is directly proportional to Jx as well as Bz. the constant of propotionality has SI unit. 1. m/As 2. m/A 3.As/m 4. ...
May 1, 2013 by Anurag

Physics
a metal sample carrying a current along X-axis with density Jx is subjected to a magnetis field Bz(along z-axis). the electric field Ey developed along Y-axis is directly proportional to Jx as well as Bz. the constant of propotionality has SI unit. 1. m/As 2. m/A 3.As/m 4. ...
May 1, 2013 by aku

physics urgent
a metal sample carrying a current along X-axis with density Jx is subjected to a magnetis field Bz(along z-axis). the electric field Ey developed along Y-axis is directly proportional to Jx as well as Bz. the constant of propotionality has SI unit. 1. m/As 2. m/A 3.As/m 4. ...
May 1, 2013 by akanksha

math
For 4.95 seconds , a particle moves in a straight line according to the position function: s(t) = e^t(5-t)-5 . a. when id the particle at rest ? when is particle moving forward ? b. Find the total distance traveled by the particle in intervals [0,1] seconds and [1,2] seconds...
November 7, 2013 by Anonymous

math
For 4.95 seconds , a particle moves in a straight line according to the position function: s(t) = e^t(5-t)-5 . a. when id the particle at rest ? when is particle moving forward ? b. Find the total distance traveled by the particle in intervals [0,1] seconds and [1,2] seconds...
November 7, 2013 by Anonymous

Calculus
Solve: The posistion of a particle moving along a coordinate line is s=sqrt(5+4t), with s in meters and t in seconds. Find the particle's velocity at t=1 sec. A) 2/3 m/sec B) 4/3 m/sec C) -1/3 m/sec D) 1/6 m/sec Thank you!
December 30, 2012 by Isha

Physics
The position vector r of a particle moving in an xy plane is given by [r = (6t^3-3t)i + (4-1t^4)j] with r in meters and t in seconds. What is the angle between the positive direction of the x axis and a line tangent to the particle's path at t = 3 s? Give your answer in the ...
September 25, 2011 by Kristin

physics (non-calc)
A particle of charge 2.5x10(^-6)C is moving at 1000 m/sec in a direction 30 degrees North of east. At the location of the particle the magnetic field has size 0.2 T. The particle is experiencing an instantaneous magnetic force (due to this sheild) of 1.71x10(^-4) newtons ...
June 7, 2011 by phil

physics
Consider a position-time graph. The position is to be graphed 1. along the horizontal axis. 2. along either axis you choose. 3. along the vertical axis.
September 4, 2012 by argelia

Physics
A particle of mass m moving at 5 m/s in the positive x direction makes a glancing elastic collision with a particle of mass 2m that is at rest before the collision. After the collision, m moves off at an angle of 45 degrees to the x axis and 2m moves off at 60 degrees to the x...
April 6, 2010 by Lauren

physics urgent please asnwer it i m begging u
a metal sample carrying a current along X-axis with density Jx is subjected to a magnetis field Bz(along z-axis). the electric field Ey developed along Y-axis is directly proportional to Jx as well as Bz. the constant of propotionality has SI unit. 1. m/As 2. m/A 3.As/m 4. ...
May 2, 2013 by aku

college physics
A proton moving in a magnetic field experiences a magnetic force of 17 N at 26o at one instant in time. At the same instant in time, an electron moving with the same speed experiences the same magnetic field. Compare the magnetic force experienced by the electron to that of ...
April 16, 2010 by Randle

Math: Calculus
The velocity function is v(t)= t^2-5t+ 4 for a particle moving along a line. The position function s(t) is an antiderivative of the velocity function. Find the displacement, s(6) - s(-3), by the particle during the time interval [-3,6].
November 11, 2010 by REALLY NEED HELP!!!!

Physics
A 50-kg person starts from rest at the top of a large frictionless spherical surface (radius 6 m) and slides into the water below. What is the magnitude of the normal force she experiences halfway along the spherical surface (at theta = 45 degrees as shown)? At this point, she...
April 23, 2012 by Charlie

physics
The velocity v(t) of some particle is plotted as a function of time on the graph below. The scale on the horizontal axis is 1 s per division and on the vertical axis 9 m/s per division. Initially, the particle is at x0 = 52 m. What is the position x of the particle at time t...
October 15, 2013 by cram

college algebra
Find the standard form of the equation of an ellipse with center at (-2,1) with major axis length 10 along y axis and minor axis length 8 along the x axis
July 14, 2012 by nik

math
The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 4 sin t + 3 cos t, where t is measured in seconds. (a)Find the average velocity during each time period. (i) [1, 2] (ii) [1, 1.1] (iii) [1, 1....
September 3, 2011 by yanxin

math
a particle moves with acceleration a(t)=(t-2)m/s^2 along an x axis and has velocity v=(0)m/s at time t=0.find the displacement and distance travelled by the particle during the given time intervals 1is less than equal to t less than equal to 5
August 14, 2012 by merewai

physics
a large bus and a van, both moving with a velocity of magnitude v, have a head-on-collision and both the vehicles stop after the collision. if the time of the collision is 1 sec then, a) which vehicle experiences smaller force of impact? b) which vehicle experiences the ...
June 7, 2013 by h

Physics Electric Force
Particle A of charge 2.76 10-4 C is at the origin, particle B of charge -6.54 10-4 C is at (4.00 m, 0), and particle C of charge 1.02 10-4 C is at (0, 3.00 m). We wish to find the net electric force on C. (a) What is the x component of the electric force exerted by A on C? (b...
April 11, 2013 by Alex

physics
A steroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.5e4kg and the force causes the speed to change from 7100 to 5500m/s. (A) What is the work done by the force? (B) If the asteroid slows...
February 26, 2012 by Natasha

Physics/Math
A force F = (4.0 N)i + cj acts on a particle as the particle goes through displacement d = (3.4 m)i - (2.0 m)j. (Other forces also act on the particle.) What is the value of c if the work done on the particle by force F is each of the following? (a) zero (b) 19 J (c) -17 J ...
March 1, 2007 by Technoboi11

physics
A particle moves along the x axis. It is initially at the position 0.280 m, moving with velocity 0.080 m/s and acceleration -0.240 m/s2. Suppose it moves with constant acceleration for 3.10 s. (a) Find the position of the particle after this time. (b) Find its velocity at the ...
May 18, 2011 by John

Physics
A particle moves along the x axis. It is initially at the position 0.350 m, moving with velocity 0.110 m/s and acceleration -0.380 m/s2. Suppose it moves with constant acceleration for 3.50 s. (a) Find the position of the particle after this time. (b) Find its velocity at the ...
May 19, 2011 by Luna

physics10
A sled of mass 51 kg is pulled along snow-covered, flat ground. The static friction coefficient is 0.30, and the sliding friction coefficient is 0.10. (a) What does the sled weigh? (b) What force will be needed to start the sled moving? (c) What force is needed to keep the ...
December 11, 2011 by Hannah

Calculus
A particle is moving along the curve whose equation is (xy^3)/(1+y^2)= 8/5. Assume the x-coordinate is increasing at the rate of 6 units/second when the particle is at the point (1,2). At what rate is the y-coordinate of the point changing at that instant? Is it rising or ...
October 25, 2011 by Jo

physics
4)A bug is moving east at 1 m/s. A semi-truck is moving west at 45 m/s. They collide and the bug is splattered across the windshield of the semi and now travels west.At the point of impact, which of the following is true about the force of the bug acting on the semi and the ...
March 31, 2008 by Jon

physics
Several forces act on a particle as shown in the figure below (where F1 = 75.0 N, F2 = 65.0 N, θ1 = 25.0 and θ2 = 74.0, . If the particle is in translational equilibrium, what are the values of F3 (the magnitude of force 3) and θ3 (the angle that force 3 makes...
May 27, 2010 by Larissa

Physics
You wonder what would happen if you fired a 9.109e-31kg particle moving at 20 m/s in the x direction of a 1.672e-24kg particle moving at 12 m/s at 110 degrees from the x direction. The lighter particle hits the screen at a 100 degree angle from the x direction. What is the ...
May 2, 2014 by Michelle

physics
A 4.90 kg particle moves along the x axis. Its position varies with time according to x = t + 3.4t3, where x is in meters and t is in seconds. (a) Find the kinetic energy at any time t. (Accurately round any coefficient to exactly two decimal places. Use t as necessary.) K...
November 14, 2011 by carlton

physics
how is the position of a particle moving along a straight line described by a number
June 13, 2011 by anmol

ap calc
a particle moves along the x-axis so that its velocity at any time t is equal to or > 0 is given by v(t)= (2pie-5)t-sin(piet) a.find the acceleration at any time t. b.find the minimum acceleration of the particle over the interval [0,3] c.find the maximum velocity of the ...
February 17, 2013 by james

ap calc
a particle moves along the x-axis so that its velocity at any time t is equal to or > 0 is given by v(t)= (2pie-5)t-sin(piet) a.find the acceleration at any time t. b.find the minimum acceleration of the particle over the interval [0,3] c.find the maximum velocity of the ...
February 17, 2013 by james

physics
A particle moving in the xy plane under goes displacement s=(2i+3j)m while the constant force is given by F=(5i+2j)N.calculate the work done by the force F.
April 2, 2012 by minas

physics!
A particle moves from the origin to the point x = 3.0 m, y = 15 m along the curve y =ax^2 - bx, where a = 3.0 m^{-1} and b = 4.0. It is subject to a force vector F = cxyi +dj, where c = 10 N/m^2 and d = 18 N. Calculate the work done by the force.
March 9, 2012 by Eliana

Calculus
The position of a particle moving along the x-axis is given by s(t)=2t2+4. Use difference quotients to find the velocity v(t) and acceleration a(t), filling in the following expressions as you do so: v(t)=limh->0 [_____ / h ] = ____ a(t)=limh->0 [ ____ / h ] = _____ ok ...
February 22, 2011 by Cecille

Physics
F1 and F2 are two horizontal forces of 70 N each, acting on a wagon. They are at 45 to the x-axis and at right angles to each other. A third force, F3, also 70 N, acts along the positive x-axis. What if, instead, F2 acted in the opposite direction from what is shown? Find the...
September 23, 2012 by arcos15

physics
The three forces shown in the figure below act on a particle (with F1 = 48.0 N, F2 = 58.0 N, θ1 = 63.0, and θ2 = 27.0). If the particle is in translational equilibrium, find F3, the magnitude of force 3 and the angle θ3. F3 = 1 N θ3 = 2 (counterclockwise...
February 21, 2009 by kj

physics
Find the resultant, in magnitude and direction of a force of 40 N which makes an angle with the + X axis of 38o and a force of 20 N acting along the + X axis. Find the x and y components of the resultant and express them as i and j vectors.
November 7, 2012 by Anonymous

Physics
an 88kg cardboard box is being pulled along a level floor. the coefficient of static friction between the box and the floor is 0.23, and the sliding friction is 0.12. What is the weight of the box? What force is needed to start the box moving? What force is needed to keep the ...
October 29, 2012 by Zach

physics
A force of 100N pulls a box of weight 200N along a smooth horizontal surface makes 45(degree) to the floor . Calculate the work done by the force. A- in moving the box a distance of 25m along the horizontal. B- against gravity. C- against normal force.
January 29, 2010 by Mota

Physics
In a vacuum, two particles have charges of q1 and q2, where q1 = +3.7 C. They are separated by a distance of 0.22 m, and particle 1 experiences an attractive force of 3.5 N. What is q2 (magnitude and sign)?
January 8, 2014 by Dee

Physics
The position of a toy locomotive moving on a straight track along the x-axis is given by the equation: x=t^4-6t^2+9t where x is in meters and t is in seconds. The net force on the locomotive is equal to zero when t is equal to Answer in units of s.
September 27, 2013 by Jonathan

PHYSICS
The only force acting on a particle is conservative force F. If the particle is at point A, the potential energy of the system associated with F and the particle is 39 J. If the particle moves from point A to point B, the work done on the particle by F is +25 J. What is the ...
April 17, 2013 by Sara

physics
a) You need to move a test particle across a floor. Given source that has a charge of q = 3e, What is the displacement between the source and the particle if you need the particle to travel 2.5m in t = 2.5s? Note: the source emits this charge only the INSTANT you pull the ...
July 9, 2012 by Anonymous

physics
An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +7.93 x 105 m/s to a final velocity of 2.90 x 106 m/s while traveling a distance of 0.0904 m. The ...
September 24, 2010 by char

physics
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.21 105 m/s to a final velocity of +2.29 106 m/s while traveling a distance of 0.034 m. The electron's ...
February 9, 2012 by Natasha

physics
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.21 105 m/s to a final velocity of +2.29 106 m/s while traveling a distance of 0.034 m. The electron's ...
February 12, 2012 by Natasha

physics
An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.11 x 105 m/s to a final velocity of 1.67 x 106 m/s while traveling a distance of 0.0654 m. The ...
March 11, 2012 by Natasha

Physics
An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.08 x 105 m/s to a final velocity of 2.63 x 106 m/s while traveling a distance of 0.0895 m. The ...
September 15, 2012 by StressedStudent

Physics
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.16 105 m/s to a final velocity of +2.23 106 m/s while traveling a distance of 0.037 m. The electron's ...
October 3, 2012 by Anonymous

Physics
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.16 105 m/s to a final velocity of +2.23 106 m/s while traveling a distance of 0.037 m. The electron's ...
October 9, 2012 by Donald

physics
An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.46 x 105 m/s to a final velocity of 2.25 x 106 m/s while traveling a distance of 0.0803 m. The ...
November 25, 2012 by John

Physics
4. A bug is moving east at 1 m/s. A semi truck is moving west at 45 m/s. They collide and the bug is splattered across the windshield of the semi and now travels west. At the point of impact, which of the following is true about the force of the bug acting on the semi and the ...
April 9, 2009 by Jasmine

PHYSICS
3. A particle of mass m= 5.00 kg is released from point A(at rest) and slides on the frictionless track shown in Figure below. Determine: ( 8 marks ) a. the particle’s speed at points B and C and (4marks) b. the net work done by the gravitational force in moving the ...
April 27, 2013 by VICTOR LAKAKI

physics
A 4.1 kg penguin runs onto a huge sheet of frictionless Antarctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.57 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.31 N directed along the positive y-axis. Calculate the ...
September 23, 2009 by john

science
A 6.90 kg penguin runs onto a huge sheet of frictionless Arctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.47 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.49 N directed along the positive y-axis. Calculate the ...
September 15, 2011 by Libby

physics
A 5.70 kg penguin runs onto a huge sheet of frictionless Arctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.35 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.45 N directed along the positive y-axis. Calculate the ...
September 25, 2013 by hunter

physics
An electron is a subatomic particle (m = 9.11 x10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.11 x 105 m/s to a final velocity of 1.67 x 106 m/s while traveling a distance of 0.0654 m. The ...
March 10, 2012 by Natasha

physics
The position of a toy locomotive moving on a straight track along the x-axis is given by the equation x = t 4 − 6 t 2 + 9 t , where x is in meters and t is in seconds. The net force on the locomotive is equal to zero when t is equal to Answer in units of s
September 30, 2013 by Anonymous

physics
An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.9 104 kg, and the force causes its speed to change from 7600 to 5400 m/s. (a) What is the work done by the force? (b) If the ...
February 28, 2011 by shaknocka

physics
Initially, a particle is moving at 5.30 m/s at an angle of 35.0 above the horizontal (+x axis). Two seconds later, its velocity is 5.97 m/s at an angle of 50.0 below the horizontal. What was the particle's average acceleration during this time interval? ________m/s2 (x ...
November 10, 2012 by Ed

Calculus
How would I solve this: -A particle moves along a line so that, at time t, its position is s(t)=8 sin2t. a) For what values of t does the particle change direction? b) What is the particle's maximum velocity?
April 8, 2010 by Terry

physics
A 14 N force with a fixed orientation does work on a particle as the particle moves through displacement d = (2i - 4j + 3k) m. What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +7.54 J and (b) -7.54 J?
October 18, 2010 by Sam

physics
A 13 N force with a fixed orientation does work on a particle as the particle moves through displacement . What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +9.19 J and (b) -9.19 J?
October 17, 2012 by Science

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