Tuesday

August 30, 2016
Number of results: 14,512

**Calc**

A rock is thrown upwards (vertically) from the ground with an initial velocity of 40 feet per second. If acceleration due to gravity is -10 feet per second squared, how high will the rock go?
*January 8, 2013 by Joe*

**science**

An object is projected vertically upwwards at 8 meters per second from the roof of a building which is 60 meters high.it strikes the balcony below in 4 seconds.What is the velocity at which the object strikes the balcony?
*January 31, 2013 by peter*

**Physics**

At a low point of its swing, a pendulum bob with a mass of 0.20kg has a velocity of 4.0m/s. (a) What is its kinetic energy? (b) How high will the bob swing above the low point before reversing direction?
*February 25, 2013 by Lakeshia*

**Calculus and vectors**

Velocity represents the slope of a displacement function. Suppose an object was moving to the right, then stopped, then continued moving to the right. What would the displacement function look like?
*December 16, 2013 by Court*

**physics**

A truck of mass 1.0 tonne moving at 4.0 m/s catches up and collides with a truck of mass 2.0 tonne moving at 3.0m/s in the same direction. The trucks become coupled together. Calculate their common velocity
*January 20, 2014 by lalala*

**physics**

A bullet of mass 100g is fired at avelocity 100m/s into a wooden block of mass 900g.If the bullet gets embeded into the block,then what would be the velocity of the system?
*April 21, 2014 by meenu*

**physics**

a train stopping distance, even when full emergency brakes are engaged, is 1.3 km. if the train was travelling at an initial velocity of 90 km/h [forward], determine its acceleration under full emergency brakes.
*March 11, 2015 by raman*

**science**

a stone is falled from a tower of height of 500 m into a pond water. When did we hear the sound of the stone, contact with water from the tower. If velocity of sound is 340m/s and accelaration of gravity is 10 m/s2
*September 27, 2015 by biki *

**Physics**

A 30-06 caliber hunting rifle fires a bullet of mass 0.0101 kg with a velocity of 279 m/s to the right. The rifle has a mass of 3.46 kg. What is the recoil speed of the rifle as the bullet leaves the rifle? Answer in units of m/s.
*December 3, 2015 by Elisabeth*

**Physics **

An astronaut wearing a spacesuit can jump 0.5 m vertically at the surface of the earth. The gravitational acceleration on Mars is 0.4 times that on the earth. If her takeoff velocity is the same, how high can the astronaut jump on Mars?
*July 6, 2016 by Mathusha*

**Physics**

I`m trying to find acceleration and I've been given distance and velocity. How would I find acceleration? (distance is distance from the ground; a ball was dropped from a certain height and that is what distance stands for)
*April 5, 2009 by Lena*

**Physics**

I`m trying to find acceleration and I've been given distance and velocity. How would I find acceleration? (distance is distance from the ground; a ball was dropped from a certain height and that is what distance stands for)
*April 5, 2009 by Lena*

**physics**

A helicopter is rising at 5.1 m/s when a bag of its cargo is dropped. (Assume that the positive direction is upward.) (a) After 2.0 s, what is the bag's velocity? (b) How far has the bag fallen? (c) How far below the helicopter is the bag?
*September 13, 2010 by penny*

**College Physics**

A car initially traveling northeast (45° N of E) at 28.3 m/s takes 6.0 s to turn to the east. After the turn, the car is traveling due east at 20.0 m/s. What is the value and direction of the change in velocity?
*September 19, 2010 by Angela*

**physics impulse**

a baseball has a mass of 0.145kg. the ball is crossing the plate horizontally at 40 m/s when the batter hits the ball. The final velocity of the ball is 50 m/s stright up. what is the impulse that the batter gives the ball?
*December 12, 2010 by Anonymous*

**Dynamics**

Car A is moving at a constant speed Va=75 km/h, while car C is moving at a constant speed Vc=42 km/h on a circular exit ramp with radius p=80m. Determine the velocity and acceleration of C relative to A.
*January 30, 2011 by Matt*

**physics**

A student rides on a train traveling at Vt = 36ikm/hr (with the respect to the ground). What are the speed and the velocity of the student with respect to the ground if he runs at 5.0im/s? -5.0 m/s? 5.0j m/s perpendicular to the direction of motion of the train?
*January 11, 2012 by Annie*

**physics**

At a point in a pipeline the velocity of liquid is 2 m/s and the pressure is 10^5 Pa. what is the pressure at a point 10 m lower than the first one (the cross-section is 1/4th of the previous one and the density of liquid is 800 kg/m^3)
*January 19, 2012 by Anonymous*

**physics**

Compute the linear momentum and angular momentum of a Frisbee of mass 0.175 kg if it has a linear speed of 1.65 m/s and an angular velocity of 61.5 rad/s. Treat the Frisbee as a uniform disk of radius 12.0 cm.
*March 14, 2012 by John*

**Physics**

Compute the linear momentum and angular momentum of a Frisbee of mass 0.160 kg if it has a linear speed of 2.00 m/s and an angular velocity of 50.0 rad/s. Treat the Frisbee as a uniform disk of radius 15.0 cm.
*April 8, 2012 by Nem*

**Math**

the acceleration of a particle is defined by the equation a= 4-t^2 with an initial velocity of two millimeters per second. Find the exact equation for the position of the particle if its initial position was zero.
*July 20, 2012 by Todd*

**physics**

A river flows due east at 2.00 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 11.0 m/s due north relative to the water.
*September 13, 2012 by Dan*

**Physics**

A man on a 2m high ladder throws a ball in the air with an initial velocity of 22m/s. If the ball is not caught by the man and instead hits the ground, how long was it in the air and how high did it go?
*September 30, 2012 by Lea *

**physics**

A river flows due east at 1.34 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 11.3 m/s due north relative to the water.
*December 17, 2012 by Anonymous*

**physics**

As your hand moves back and forth to generate longitudinal pulses in a spiral spring, your hand completes 3.26 back-and-forth cycles every 8.31 s. The velocity of the pulse in the spring is 1.47 cm/s.
*March 24, 2013 by lex*

**Physics**

a shell is fired at a velocity of 300 m/s at an angle of 30. a. how far does it go? b. what are it's time of flight and maximum altitude? c. At what other angle could the shell have been fired to have the range?
*January 5, 2014 by Joyed*

**physics**

A coin placed on a rotating turn table just slips if it is at a distance of 40cm from the centre if the angular velocity of the turn table is doubled,it will just slip at a distance of
*April 24, 2014 by partha*

**pre-cal**

Find the height of a ball after 3 seconds, if the ball is hit with an initial velocity of 90 feet per second at an angle of 60 degrees from an initial height of 5 feet.
*November 30, 2014 by Anonymous*

**Science**

A block of weight 7.0N rest on a level floor. The frictional force between the block and the floor is 1.0N, A horizontal force of 1.4N is used to pull the block for 4s.what is the velocity of the block after this time?
*April 11, 2015 by Olushola*

**physics**

A tennis ball is thrown vertically upwards from the ground with a velocity of 50m/s calculate.1.the maximum height reached. 2.the time to reached the maximum height. 3.the time of flight
*April 29, 2015 by Marino*

**Physics **

John takes off running towards his house that is 6 meters away. His initial velocity is 2m/s. How long will it take John to get to his hose (his orgin)? What if his house was 15 meters away?
*September 21, 2015 by Hilary*

**Geography **

Hot air balloon A is raising upward at a rate of 10.0 m/s. A passenger aboard balloon A observers balloon B going down at a relative rate of 12.5 m/s. What is the velocity of balloon B relative to the group?
*January 19, 2016 by Maricela*

**Work**

A truck carrying a 57 kg crate accelerates uniformly from rest to 86.5 km/hr in 18.4 s. Calculate the work done on the crate by the truck (in J). I got 16454 J right. Now why is it positive? K-K = negative if Velocity from rest is 0.
*April 10, 2016 by Chris*

**Maths**

Consider the Ferris wheel above. It has an axle standing 38m off the ground and a radius of 35m. The wheel takes 5 minutes to complete one revolution. The wheel moves in clockwise motion and you are sitting in one of the carriages which are horizontally in line with the axle, ...
*May 3, 2012 by Emad*

**Math**

A particle moves in a straight line with velocity t^(-2)-(1/16) ft/s. Find the total displacement and total distance traveled over the time interval [2,5 ok i got the displacement is .1125 ft however i can not find the distance! help!
*November 18, 2007 by Anonymous*

**physics**

An object of mass 0.5 kg is thrown vertically upward at a speed of 30 m/s. What is the kinetic energy of the object at the highest point of its trajectory? Would this answer be zero since velocity at the highest point is zero?
*November 10, 2009 by Ivana*

**physics**

Two masses, m1= 1 kg and m2 = 2kg, collide. the first mass has a velocity of .95 m/s east, then 50 degrees NE. The second mass is stationary and then moves off 40 degrees SE. What are the velocities of the two masses after the collision?
*April 11, 2010 by lisa*

**physics help please!!!**

A venturi tube is measuring the flow of water; it has a main diameter of 4.1 cm tapering down to a throat diameter of 1.8 cm. If the pressure difference is measured to be 67 mm-Hg, what is the velocity of the water? Please help step by step!!!
*April 18, 2010 by Anonymous*

**Physics**

A 2 kg ball of putty moving to the right at 3m/s has a head-on inelastic collision with a 1 kg ball of putty moving to the left at 3m/s. What is the final magnitude and direction of the velocity of the stuck together balls after the collision?
*June 8, 2010 by Misty*

**college**

A 2 kg ball of putty moving to the right at 3m/s has a head-on inelastic collision with a 1 kg ball of putty moving to the left at 3m/s. What is the final magnitude and direction of the velocity of the stuck together balls after the collision?
*June 8, 2010 by Misty*

**physics**

An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.
*December 15, 2010 by sue*

**physics**

An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.
*December 15, 2010 by sue*

**physics**

An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.
*December 16, 2010 by tammy mikols*

**Chemistry**

Kinetic energy is calculated from the formula KE = (1/2)mv2. Suppose a mass of 14.2 kg (m = 14.2 kg) is moving with a velocity of 750. ms-1 (v = 750. meters per second). Calculate the kinetic energy of this mass in units of Joules.
*January 25, 2011 by Abby*

**Velocity and Displacement**

The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 120 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
*September 1, 2011 by Fainah*

**Physics**

A small source of light is located at a distance from a vertical wall. An opaque object with a height of moves toward the wall with constant velocity of magnitude . At time , the object is located at the source .
*September 15, 2011 by Matt*

**Physics**

A 2 kg ball of putty moving to the right at 3m/s has a head-on inelastic collision with a 1 kg ball of putty moving to the left at 3m/s. What is the final magnitude and direction of the velocity of the stuck together balls after the collision?
*October 8, 2011 by Nikki*

**Physics (2)**

The two particles are both moving to the right. Particle 1 catches up with particle 2 and collides with it. The particles stick together and continue on with velocity vf. Which of these statements is true? A. vf=v2. B. vf is less than v2. C. vf is greater than v2, but less ...
*October 29, 2011 by Anonymous*

**physics**

A 1.30 × 10 4 kg railroad car moving at 6.70 m/s to the north collides with and sticks to another railroad car of the same mass that is moving in the same direction at 1.83 m/s. What is the velocity of the joined cars after the collision? Answer in units of m/
*January 4, 2012 by marie*

**physics**

You have a 15.0 kg block of wood and you drop it from rest at a great height. It reaches terminal velocity of 31.3 m/s. If this is low-speed drag, what is the value of the constant b? If this is a high-speed drag, what is the value of the constant c?
*March 17, 2012 by jane*

**phsyic A**

i experimented on constant velocity i have to set up data table but i need to solve with r(lowercase i)=d(lowercase i)- v(lowercase 2)* t(lowercase i)<-- | here my data table: V Time-t distance-d r=d-vt (ri=di-v2*ti) 0.033 2.9 cm _?_ 0.066 5.6 cm __ 0.099 8.1 cm __
*September 18, 2012 by Vicky*

**Physics**

A dog running in the +y-direction at 6.0 hears its owner call from behind, and 2.7 later it's running at the same speed in the opposite direction. Calculate the dog's change in velocity. Calculate the average acceleration
*October 12, 2012 by Marissa*

**physics**

Here's a basketball problem: A 83.0 kg basketball player is running in the positive direction at 7.5 m/s. She is met head-on by a 101.6 kg player traveling at 5.3 m/s toward her. If the 101.6 kg player is knocked backwards at 3.4 m/s, what is the resulting velocity of the 83.0...
*November 2, 2012 by shyne*

**PHYSICS**

A small block of mass 0.5 kg is released from rest at the top of a ramp of mass 3 kg that sits on a frictionless horizonal surface. When the block leaves the ramp it has a speed of 4 m.s a)what is the recoil velocity of the ramp b) how high is the ramp?
*April 17, 2013 by HELP*

**physics**

A satellite with mass 6.00*10^3 is in the equatorial plane in a circular orbit. The planet's mass = 6.59 *10^25 and a day of length is 1.6 earth days. How far from the center (in m) of the planet is the satellite? What is the escape velocity (km?sec) from the orbit?
*October 19, 2013 by Jets*

**Physics... HELP**

A toy car runs off the edge of a table that is 1.225 meters high. If the car lands 0.400 meters from of the table, a. How long does it take for the car to fall? b. What is the horizontal velocity of the car?
*December 12, 2013 by sydney *

**science **

A ball is thrown upwards and reaches the ground once again after 4 sec: (a)calculate the height that the ball reaches (b)the total distance covered by the ball (c)the velocity with which the ball hits the ground
*May 12, 2016 by sebenano *

**physics**

A helicopter is rising at 4.7 m/s when a bag is dropped from it. (Assume that the positive direction is upward.) (a) After 2.0 s, what is the bag's velocity? (b) How far has the bag fallen? (c) How far below the helicopter is the bag?
*October 26, 2009 by Tay*

**Physics**

A ball rolls down an incline at a constant acceleration of 2 m/s^2. What is the velocity of the ball after 8.5 s? How far does the ball roll in 10s? How far does the ball roll in the seventh second?
*January 11, 2010 by Iman*

**physics**

A speedboat heads west at 115 km/h for 16.0 min. It then travels at 56.0° south of west at 87.0 km/h for 9.0 min. (a) What is the average speed for the trip? (b) What is the average velocity for the trip in magnitude and direction?
*January 21, 2010 by Sandhya*

**science**

The average velocity of molecules of nitrogen gas (N2) at room temperature is around 500 m/s. If you were to raise the temperature of the nitrogen gas by 50°C what is a good estimate for the speed of the molecules?
*May 3, 2011 by aaronia *

**Physics**

An airplane, traveling 90 degrees, at 100 meters per second is blown towards 180 degrees at 50 meters per second. What is the resultant velocity and direction?
*September 8, 2011 by Benjamin*

**Physics**

A pond is 12 metres across. The crests of two successive waves are 60.0 cm apart and they each move across the pond in 15 seconds. a)What is the velocity of the waves? b)What is the frequency of the waves? c)What is the period of the waves?
*February 24, 2013 by Mark*

**physics**

A table clock has its minute hand 4.0 cm long. find the average velocity of the tip of the minute hand (a) between 6am to 6.30am and (b) between 6am to 6.30pm
*May 16, 2014 by harit*

**Physics**

A pond is 12 metres across. The crests of two successive waves are 60.0 cm apart and they each move across the pond in 15 seconds. a)What is the velocity of the waves? b)What is the frequency of the waves? c)What is the period of the waves?
*November 23, 2014 by Sasha*

**math**

Find the height of a ball after 3 seconds, if the ball is hit with an initial velocity of 90 feet per second at an angle of 60 degrees from an initial height of 5 feet.
*November 30, 2014 by Anonymous*

**Physics **

Can someone please help me solve this question please: In the following position as a function of time equation, find the units of the constants A, B, and C. Where x is the position and has units of L, and v is velocity, and t is time. x = Av + Bt^2 + C Thank you.
*February 8, 2015 by Sammie*

**physics**

A car A is going north-east at 80km/h and another car B is going south-east at 60km/h. The direction of the relative velocity of A with B makes an angle of x with north find x
*March 7, 2015 by shubham*

**Science- Physics **

an 80 kg skater and a 60 kg skater stand in the middle of an ice rink and push each other away. the 60 kg skater moves away at 2 m/s calculate her momentum and the velocity of the other skater
*December 9, 2015 by Kerry*

**physics**

Ball A mass 0.5kg rolls at 3m/s into ball B which is stationary and has mass of 0.9kg if the collision brings ball A to rest what is the velocity of ball B immediately after the collision
*February 28, 2016 by favour*

**PHY 1004**

A projectile is fired with an initial velocity of 10.0 m/s at an angle of 30^0 above the horizontal. It is at ground level and returns to ground level.. Determine the projectile's horizontal range
*April 9, 2016 by Rocio*

**Chemistry**

A metal whose threshold frequency is 1.10×1015 s−1 emits an electron with a velocity of 6.53×105 m/s when radiation of 1.37×1015 s−1 strikes the metal. What is the mass of the electron?
*April 14, 2016 by Anonymous*

**Phisic mechanic**

A trailer mechanic pushes a 2500 kg car, home to a speed v, performing a job during the 5000 J. In this process, the car moves 25 m. Neglecting friction between the car and roadway: (A) What is the final velocity v of the car? (B) What horizontal force exerted on the car?
*October 4, 2010 by cls*

**Math-Trig**

A ball is tossed up in the air at an angle of 70 degrees with the horizontal and with an initial velocity of 36 ft/sec. What is the position of the ball 1 second after it is released? When will the ball hit the ground? What is the maximum height the ball will reach? How far in...
*May 28, 2013 by Gianna *

**physics**

so I got a question about projectile motion take the example of shooting of a plastic air rocket into the air and asked to predict its landing point and how high it goes... ok I know how to do this... the thing is now were not neglecting air resistence and I don't know what to...
*July 31, 2009 by physics*

**Applied Maths**

the horizontal range of a projectile is 4a. It passes a tower that height a/2 when the horizontal range was a. What is the projectile velocity and projectile angle.
*December 18, 2010 by Danvi*

**northview**

A player bounces a 0.46 kg soccer ball off her head, changing the velocity of the ball from i = (8.7 m/s) + (-3.7 m/s) to f = (5.1 m/s) + (4.2 m/s). The ball is in contact with the player's head for 6.7 ms.
*November 1, 2011 by bala*

**physics**

what's the pressure change in water going from a 5.0cm diameter pipe to a 2.0cm diameter pipe if the velocity in the smaller pipe is 4.0m/s .
*February 25, 2016 by Nwabugwu*

**PHYSICS/MATH**

A mass and spring are arranged on a horizontal, frictionless table. The spring constant is k = 450 N/m, and the mass is 5.4 kg. The block is pushed against the spring so that the spring is compressed an amount 0.35 m, and then it is released. Find the velocity of the mass when...
*April 12, 2013 by HP*

**Physics**

Complete the following statement: The term net force most accurately describes: a) quantity that causes displacement b) quantity that keeps the object moving c) the mass of the object d) the quantity that changes the velocity of an object c) is not the right choice. I believe ...
*November 14, 2007 by Andrea*

**Algebra-Quadratic Applications**

A diver on a platform 40 feet in height jumps upward with an initial velocity of 5 feet per sec. His height in h feet after t seconds is given by the function h=-16t^2+5t+50. What is his maximum height? How long will it take him to reach the surface of the water?
*May 13, 2010 by chica*

**Physics**

A pistol is fired horizontally toward a target 120 m away but at the same height. The bullet's velocity is 200 m/s. How long does it take the bullet to get to the target? How far below the target does the bullet hit? please explain why you used the formula and how you got the ...
*June 9, 2015 by Mark*

**Physics**

On July 19, 1969, Apollo II's orbit around the moon was adjusted to an average orbit of 111km. The radius of the moon is 1785 km and the mass of the moon is 7.3e22 kg. a) How many minutes did it take to orbit once? b) At what velocity did it orbit the moon?
*October 30, 2007 by Elizabeth*

**Physics-work,power,energy**

A 20 ton truck is pulling a 5 ton trailer.their common uniform velocity is 54 kmph.if the frictional force is 20N per both the truck and the trailer then power developed is?
*October 31, 2010 by Raj*

**physics**

A student throws a ball vertically upward such that it travels 7.5 to its maximum height.If the ball is caught at the initial height 2.3 after being thrown, what is the ball’s average speed? What is the ball’s average velocity?
*February 17, 2011 by Anonymous*

**physics**

A cable lifts a 1220-kg elevator at a constant velocity for a distance of 39.7 m. What is the work done by the tension in the cable? can someone help me with this the answer is supposed to be in joules i tried doing it by 1220(9.81)(39.7) = 475137J but that is not the answer ...
*November 27, 2011 by Yuli*

**physics**

A bullet is fired at an initial velocity of 300 m/s from the top of a cliff 150 m high. Find the initial horizontal and vertical components, horizontal and vertical displacement, displacement upon reaching the ground.
*January 9, 2012 by ellah*

**physics**

A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s toward an orbiting spacecraft. The astronaut will fire a 100.0 N rocket backpack to stop his motion relative to the spacecraft. (a) What acceleration is attained by the rocket backpack?
*January 22, 2012 by sarah*

**Physics**

A 1.46 × 10 4 kg railroad car moving at 7.05 m/s to the north collides with and sticks toanother railroad car of the same mass that is moving in the same direction at 1.76 m/s. What is the velocity of the joined cars after the collision? Answer in units of m/s
*January 22, 2012 by Angel*

**Physics**

A dog running in the +y-direction at 6.6m/s hears its owner call from behind, and 3.0secs later it's running at the same speed in the opposite direction. Compute the dog's change in velocity. Compute its average acceleration.
*February 9, 2012 by Tig*

**Northern Virginia community college**

A speedboat heads west at 104 km/h for 24.0 min. It then travels at 64.0° south of west at 109.0 km/h for 13.0 min. (a) What is the average speed for the trip? What is the average velocity for the trip? magnitude direction
*May 29, 2012 by Domynique*

**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*

**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 small ball of mass 2.00 kilograms is moving at a velocity 1.50 meters/second. It hits a larger, stationary ball of mass 5.00 kilograms. What is the kinetic energy of the system after the collision if the collision is elastic?
*October 10, 2012 by marie*

**Physics**

Tigger jumps into the sandpit. As this 13 kg animal jumps up, his initial velocity is 6 m/s with an angle of 26 degrees. As Tigger lands into the sandpit, how much work is done by the sand to stop him? Answer in units of Joules
*November 28, 2012 by Rebecca *

**trig**

an airplane has an airspeed of 430 miles per hour at a bearing of 135 degrees. the wind velocity is 35 miles per hour in the direction N30degreesE. Find the resultant speed and direction of the plane.
*April 12, 2013 by kayleigh*

**college physics**

An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a magnitude of 6.4N ; a second force has a magnitude of 5.0N and points in the negative y direction.
*September 29, 2013 by taylor*

**Physics**

Acceleration due to gravity is independent of mass, but the force is not. Determine the final velocity of the following objects and the force generated by the same objects as they are dropped from the given heights. 10 kg 2.5 meters 7 kg 5.5 meters 0.5 kg 12 meters 0.7 kg 5 ...
*April 5, 2014 by Anonymous*

**Dynamics**

The body is fired with an initial angle theta0 and velocity v0. Show that the minimum time that it will reach the line AB is only when theta0=1/tan(alpha), where alpha is tha angle between the line AB and the horizontal.
*July 30, 2014 by Dynamics Problems*

**physics**

an object of mass m is suspended by a string of length 2m .the object is rotated in a horizontal circle show the relationship between the tension and mass and linear velocity of the body when the string make an angle to the horizontal
*October 30, 2014 by boni*