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May 1, 2016

# Search: There are two forces acting on the 2 kg box shown in the figure below, but only

Number of results: 81,204

PHYSICS
Two horizontal forces, F1 and F2, are acting on a box, but only F1 is shown in the drawing. F2 can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +6.2 N and the mass of the box...
February 2, 2011 by Tiffany

Physics
Two horizontal forces, F1-> and F2-> , are acting on a box, but only F1->is shown in the drawing. F2-> can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that F1-> = +8...
February 13, 2013 by Randy

Uos
Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +2.6 N and the mass of the box is 4.7 kg...
April 11, 2014 by Mariam

Physics =/
Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +5.6 N and the mass of the box is 3.1 kg...
September 26, 2014 by Sanz

physics
Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +8.3 N and the mass of the box is 4.5 kg...
February 19, 2015 by bill

NEWTON'S LAWS (FORCES)
Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force 78.0N is applied to box A . Starting from rest, box B descends 12.3 m in 3.80s . The tension in the rope connecting the two boxes is 30.0 N What is...
October 8, 2011 by Mar

#1. Which statement is true about the image below? 7 N -> |rectangle| <- 7 N •The forces acting on the rectangle are balanced. (?CORRECT?, MY ANSWER) •The forces acting on the rectangle are unbalanced. •The forces acting on the rectangle are unequal. •The forces acting ...
March 3, 2014 by Mindy

physics
A person pushes with force F on a box which remains at rest on a rough floor as shown in the top figure. The bottom figures illustrates all the force acting on the box. a) What condition must be satisfied by all the force acting on the box so that it remains at rest? Draw a ...
April 5, 2013 by /

Science
There are two forces acting on a box of golf balls, F1 and F2. The mass of the box is 0.750 kg. When the forces act in the same direction, they cause an acceleration of 0.450 m/s2. When they oppose one another, the box accelerates at 0.240 m/s2 in the direction of F2. (a) What...
November 6, 2014 by Abbi

Science
There are two forces acting on a box of golf balls, F1 and F2. The mass of the box is 0.750 kg. When the forces act in the same direction, they cause an acceleration of 0.450 m/s2. When they oppose one another, the box accelerates at 0.240 m/s2 in the direction of F2. (a) What...
November 6, 2014 by Abbi

physics
There are two horizontal forces on the 2.0 kg box in the overhead view of Fig. 5-39 but only one (of magnitude F1 = 20 N) is shown. The box moves along the x axis. For each of the following values for the acceleration ax of the box, find the second force in unit-vector ...
February 21, 2010 by beav

PHYSICS
The acceleration of the center-of-mass point of a system of particles depends on: a) all the forces acting on the system b) only the external forces acting on the system c) only the internal forces acting on the system
March 19, 2007 by terrence

physics
There are two forces acting on a box of golf balls, F1 and F2. The mass of the box is 0.750 kg. When the forces act in the same direction, they cause an acceleration of 0.450 m/s2. When they oppose one another, the box accelerates at 0.240 m/s2 in the direction of F2. (a) What...
December 2, 2010 by skhan

physics
Question Part Points Submissions Used An aluminum block, m1 = 3.00 kg, and a copper block, m2 = 1.14 kg, are connected by a light string over a frictionless pulley. They sit on a steel surface as shown in the figure below, where θ = 45.0°. (See the table below for the ...
October 17, 2011 by carlton

physics
A box containing supplies is vertically lowered at constant speed by a rope from a hovering helicopter. Consider the following forces that arise in this situation: force 1: the force of the earth pulling on the box force 2: the tension force acting on the box force 3: the ...
June 8, 2014 by Sam

Physics - Multiple choice
An object is moving in a circle at a constant speed. From this you can be certain that a) there are at least two forces acting on the object, which balance each other. b) there are at least two forces acting on the object, which do not balance each other c) there must be more ...
May 26, 2011 by Casey

mechanics
Q2. A block of massmrests on the left edge of a block of larger massM. The coefficient of kinetic friction between the two blocks is , and the surface on which the larger block rests is frictionless. A constant horizontal force of magnitude F is applied to the block of mass m...
December 9, 2010 by sana

Physics
A 25 kg box is being pulled across a surface. The coefficient of kinetic friction between the box and the surface is 0.55. a) if the box is moving at a constant speed, what is the pulling force? b)If the pulling force is 350 N, what is the NET force acting on the box? c)If the...
November 16, 2014 by Daniel

Physics
A ball is falling through the air. It has just two forces acting on it, its weight and air resistance. Which of the following statements is true? a. There are only conservative forces acting on the ball. b. There are only nonconservative forces acting on the ball. c. There are...
December 12, 2011 by Sarah

Physics
At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of 92 N at an angle of 30 as shown in the figure below. The box of books has a mass of 22.0 kg, and the coefficient of kinetic friction between the ...
November 5, 2012 by B

physics
Two people are holding up the ends of a 4.40-kg wooden board that is l = 1.60 m long. A m = 7.00-kg box sits on the board, 0.50 m from one end, as shown below. What forces do the two people exert?
January 2, 2013 by Jamison

Physics
Two people are holding up the ends of a 4.40-kg wooden board that is l = 1.95 m long. A m = 2.00-kg box sits on the board, 0.50 m from one end, as shown below. What forces do the two people exert?
February 12, 2015 by Maria

physics
A box of box is at rest on the floor. Identify the forces acting on the box by drawing a free-body diagram.
October 4, 2011 by yvone.

AP Physics
While two forces act on it, a particle is to move at the constant velocity v = (3 m/s) i - (4 m/s) j. One of the forces is F1 = (2 N) i + (- 6 N) j. What is the other force? ( _____ N) i + ( _____ N) j Only two horizontal forces act on a 3.0 kg body that can move over a ...
November 13, 2008 by J

math
Four corners are cut from a rectangular piece of cardboard that measures 5 ft by 3 ft. The cuts are x feet from the corners, as shown in the figure below. After the cuts are made, the sides of the rectangle are folded to form an open box. The area of the bottom of the box is ...
January 15, 2015 by Alex

physics
A box and its contents have a total mass M = 9 kg. A string passes through a hole in the box, and you pull on the string with a constant force F = 77 N (this is in outer space; there are no other forces acting). (a) Initially the speed of the box was vi = 5 m/s. After the box ...
November 16, 2011 by Anonymous

Physics-forces
1. a force of 250N is used to push a heavy box down the street. If the force of friction between the box and the street is 195N and the box has a mass of 60kg, what is the accleration of the box? 2.a force of 40N is applied to a 6kg box of books. If the frictional force acting...
January 5, 2014 by Jessie

A planet is in circular orbit about a remote star, far from any other object in the universe. Which of the following statements is true? a. None of the other statements are true. b. There is only one force acting on the planet. c. There are two forces acting on the planet and ...
April 30, 2011 by Catherine

Physics
The two ropes attached to the hook in the figure below are pulled on with forces of F1 = 150 N and F2 = 300 N. What size single force acting in what direction would produce the same effect? F1 45 Degrees F2 30 Degrees
December 29, 2011 by Mike

physics
Two books of mass m1 = 6.9 kg and m2 = 3.8 kg are stacked on a table as shown in the figure below. Find the normal force acting between the table and the book on the bottom. im confused where to start
September 9, 2010 by tommy

physics
Pleaseee help explain how to draw the free body diagrams for this problem!!! Two blocks with masses m1 = 10.9 kg and m2 = 79.3 kg, shown in the figure (in the figure the 79.3kg block(m2) is on a flat surface, the 10.9kg(m1) block is pinned against the block with the greater ...
November 9, 2011 by dave

physics
Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force 78.0N is applied to box A . Starting from rest, box B descends 12.3 m in 3.80s . The tension in the rope connecting the two boxes is 30.0 N What is...
October 8, 2011 by Mar

physics
Three horizontal forces (the only horizontal one) act on a box sitting on a floor. One force (F1) acts due east and has a magnitude of 150 lb. A second force (F2) has an easterly component at 30.0 lb and a southerly component at 40.0 lb. The box remains at rest. Sketch the two...
September 24, 2011 by bl

Physics
Only two horizontal forces act on a 9.1 kg body. One force is 5.3 N, acting due east, and the other is 1.6 N, acting 56° north of west. What is the magnitude of the body's acceleration?
January 30, 2011 by Ethan

physics
As shown in the figure below, a box of mass m = 57.0 kg (initially at rest) is pushed a distance d = 79.0 m across a rough warehouse floor by an applied force of FA = 202 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the ...
October 13, 2014 by Fong

mechanics
The figure below shows an overhead view of three horizontal forces acting on a cargo canister that was initially stationary but that now moves across a frictionless floor. The force magnitudes are F1 = 2.00 N, F2 = 3.00 N, and F3 = 13.00 N. What is the net work done on the ...
October 26, 2012 by solution provider

Help physics
The figure below shows an overhead view of three horizontal forces acting on a cargo canister that was initially stationary but that now moves across a frictionless floor. The force magnitudes are F1 = 2.00 N, F2 = 3.00 N, and F3 = 13.00 N. What is the net work done on the ...
October 26, 2012 by Anonymous

Physics
Plz, i need the workings. An object is acted upon by two forces of 5N and 12N. Calculate the resultant of two forces if the forces acting perpendicular to each other
October 3, 2015 by Benjamin

Physics
Two forces are the only forces acting on a 7.8 kg object which moves with an accelera- tion of 4.5 m/s2 in the positive y direction. One of the forces acts in the positive x direc- tion and has a magnitude of 14 N. What is the magnitude of the other force f2? Answer in units of N
October 14, 2012 by Jessica

physics
Two forces are the only forces acting on a 2.8 kg object which moves with an accelera- tion of 2.5 m/s2 in the positive y direction. One of the forces acts in the positive x direc- tion and has a magnitude of 12 N. What is the magnitude of the other force f2? Answer in units
October 17, 2012 by josi

Physics
The helicopter view in the figure below shows two people pulling on a stubborn mule. Assume that F1 is 130 N, and F2 is 65 N. The forces are measured in units of newtons (N). (a) Find the single force that is equivalent to the two forces shown. In both magnitude and direction...
May 18, 2011 by anne

Physics
Three forces, F1 = 9.2 N, F2 = 7.8 N and F3 = 8.3 N are acting on a small box of mass 47.0 kg. If the box is moving in the direction of F2 at constant speed, what is the magnitude of the combination of F2 and F3
March 8, 2014 by Yarielis

woburn
We consider a man of mass m = 77 kg as shown in the figure below using crutches. The crutches each make an angle of è = 26 with the vertical. Half of the person's weight is supported by the crutches, the other half is supported by the normal forces acting on the soles of the ...
October 4, 2010 by shariva

physics
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 428 N and F2 = 358 N. (Assume up and to the right as positive directions.) a) What is the resultant of these two forces? magnitude and direction b) If the car has a mass of 3,...
March 1, 2012 by jill

physics
to forces are applied to a car in an effort b to move it ,as shown in figure .a) what is the resultant of these two forces ? b). if the car has a mass of 3000 kg , what acceleration does it have ? ignore friction.
January 25, 2016 by m adnan

Physics
There are two forces on the 2.36 kg box in the overhead view of Fig. 5-31 but only one is shown. For F1 = 18.6 N, a = 11.4 m/s2, and θ = 26.7°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative...
September 28, 2011 by Anonymous

Physics
There are two forces on the 2.36 kg box in the overhead view of Fig. 5-31 but only one is shown. For F1 = 18.6 N, a = 11.4 m/s2, and θ = 26.7°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative...
September 28, 2011 by Anonymous

physical
Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 9.0 N, acting due east, and the other is 6.9 N, acting 54° north of west. What is the magnitude of the body's acceleration?
September 20, 2010 by jindi

Physics
We consider a man of mass m = 84 kg as shown in the figure below using crutches. The crutches each make an angle of θ = 26degrees with the vertical. Half of the person's weight is supported by the crutches, the other half is supported by the normal forces acting on the ...
September 26, 2009 by Matt

Two forces, F1 and F2, act on the 5.00 kg block shown in the drawing. The magnitudes of the forces are F1 = 69.0 N and F2 = 24.5 N. What is the horizontal acceleration (magnitude and direction) of the block? F1 is pointing at the top left corner of the box forming a 65 degree ...
January 21, 2012 by Nilan

Physics
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 402 N and F2 = 364 N. (Assume up and to the right as positive directions.)(F1 is 10degrees and F2 is 30degrees) (a) What is the resultant of these two forces? magnitude ...
May 3, 2011 by Dani

physics
Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them as shown in the figure below. A cord initially holding the blocks together is burned; ...
January 23, 2011 by Jackie

physics
Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them as shown in the figure below. A cord initially holding the blocks together is burned; ...
January 23, 2011 by Jackie

physics
Two forces act on an object. The magnitude of the net force acting on the object a. equals the sum of the magnitude of the two forces b. equals the difference in the magnitudes of the two forces c. equals the average of the two forces d. cannot be determined from the given ...
February 6, 2013 by Carolyn

physics
A uniform beam of length 7.60 m and weight 4.30 102 N is carried by two workers, Sam and Joe, as shown in the figure below. (a) Determine the forces that each person exerts on the beam. F_Sam = ___ N F_Joe = ___ N
December 16, 2012 by anonymous

physics
We consider a man of mass m = 85 kg as shown in the figure below using crutches. The crutches each make an angle of è = 26o with the vertical. Half of the person's weight is supported by the crutches, the other half is supported by the normal forces acting on the soles of the ...
September 27, 2009 by m2a

math
Four corners are cut from a rectangular piece of cardboard that measures 5 ft by 3 ft. The cuts are x feet from the corners, as shown in the figure below. After the cuts are made, the sides of the rectangle are folded to form an open box. The area of the bottom of the box is ...
January 22, 2015 by Alex

PHYSICS ~so confused~
so i'm going to try my hardest to type this out. which of the following system of forces provides the block the highest net force? a.) 11N--->[box]<---71N b.) 405N--->[box]<---403N c.) 227N--->[box]<---153N d.) 22.7N--->[box]<---15.3N I thought this was...
December 11, 2012 by Gavin

physics
The forces in the figure below are acting on a 2.1 kg object. Find the values of ax and ay, the x and y components of the acceleration. i.imgur. com/nNz9m. png this is one of the last problems on my homework that i just do not understand.. can someone please explain it to me? ...
September 28, 2012 by kev

physics
Two blocks with masses m1 = 1.10 kg and m2 = 3.10 kg are connected by a massless string, as shown in the Figure (the figure shows m1 on top of a box and m2 hanging off the side of the box). They are released from rest. The coefficent of kinetic friction between the upper block...
February 28, 2012 by meyer

physics
Two blocks with masses m1 = 1.10 kg and m2 = 3.10 kg are connected by a massless string, as shown in the Figure (the figure shows m1 on top of a box and m2 hanging off the side of the box). They are released from rest. The coefficent of kinetic friction between the upper block...
February 28, 2012 by meyer

physic
Hi!Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 439 N(10degree) and F2 = 365 N(30degree). (Assume up and to the right as positive directions.) (a) What is the resultant of these two forces? magnitude____N direction_____...
October 12, 2009 by Chan

physics
Find the magnitude and direction of a)the resultant b)the equilibrant of two forces 10N acting in the direction N030'E and 15N acting in the eastern direction if boths forces act at a point. Please solve nd give the details especially the B parts of the question.
March 31, 2011 by pete onoriode

Physics
Two ice skaters have masses m1 and m2 and are initially stationary. Their skates are identical. They push against one another, as shown below, and move in opposite directions with different speeds. While they are pushing against each other, any kinetic frictional forces acting...
April 1, 2008 by Will

Physics
Two ice skaters have masses m1 and m2 and are initially stationary. Their skates are identical. They push against one another, as shown below, and move in opposite directions with different speeds. While they are pushing against each other, any kinetic frictional forces acting...
March 13, 2012 by Natasha

mechanics
Two planets, X and Y , travel counterclockwise in circular orbits about a star, as shown in figure below. The radii of their orbits are in the ratio 3 : 1. At some time, they are aligned as in the figure, making a straight line with the star. During the next five years, the ...
December 9, 2010 by sana

science
a 5.o kg book is sitting on a table. which describes the forces acting on the book? a)there are no forces acting on the book b)the net force on the book is zero Since the weight of the book is cancelled out by the support of the table. does that mean a) there are no forces ...
August 7, 2010 by nancy

physics
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 443 N and F2 = 372 N. (Assume up and to the right as positive directions.) (a) What is the resultant of these two forces? magnitude N direction ° to the right of the forward ...
September 29, 2012 by Anonymous

Physics
A particle with a mass of 1.55 kg is acted on by a force Fx acting in the x-direction. If the magnitude of the force varies in time as shown in the figure below, determine the following.
January 12, 2015 by Anonymous

physics
3 Fig. 3.1 shows the arm of a crane when it is lifting a heavy box. Fig. 3.1 (a) By the use of a scale diagram (not calculation) of the forces acting at P, find the weight of the box. [5]
January 7, 2014 by rida

physics
Two boxes are connected by a cord running over a pulley as shown in the picture below. Box I of mass 8.0 kg is on the top of the table; the coefficient of kinetic friction between box I and the table is 0.10. Box II has a mass of 15.0 kg. What is the tension in the cord? 35 N ...
February 5, 2014 by ashley

physics
DRWLS: PLEASE SEE ADDITIONAL INFO AT THE BOTTOM its the second part of the question that I don't understand: according the graph shown, the net force acting on an object varies wth the object's displacement. Calculate the work down by the force on the object at the various ...
January 30, 2010 by Sarah N H

Physics
A box of mass m=1.5 kg is attached to a spring with force constant k=12 and suspended on a frictionless incline that makes a 30 degree angle with respect to the horizontal. With the spring in its unstretched length, the box is released from rest at x=0. The box slides down the...
March 27, 2012 by Jake

physics
The launching mechanism of a toy gun consists of a spring of unknown spring constant, as shown in the figure below. If the spring is compressed a distance of 0.160 m and the gun fired vertically as shown, the gun can launch a 21.0-g projectile from rest to a maximum height of ...
March 21, 2013 by Anonymous

physics
What is the work done by the two forces together in moving an object a distance of d = 5 m as shown in the diagram? The magnitude of each force is 19 N. Diagram: (The two forces, F1 and F2, have the same magnitud but F1 is 45º over de the x axis, and F2 is 45º below de x axis...
November 5, 2014 by Jina

physics
?????Two books of mass m1 = 6.9 kg and m2 = 3.8 kg are stacked on a table as shown in the figure below. Find the normal force acting between the table and the book on the bottom. SO g*m1+g*m2=104.86 N = mgcos(θ) N= (104.86)(9.81)Cos? Where do i find cos? IS THIS RIGHT?
September 9, 2010 by tommy

physics
When the mover pushes the box, two equal forces result. Explain why the box moves even though the forces are equal and opposite
May 8, 2012 by Ej

Two forces 10 N acting in the direction N 30 east and 15 N acting in the eastern direction, if both forces act at a point, find the magnitude and direction of (a) the resultant force (b) the equilibriant force.
April 10, 2015 by Godson

Physics
Two forces 10 N acting in the direction N 30 east and 15 N acting in the eastern direction, if both forces act at a point, find the magnitude and direction of (a) the resultant force (b) the equilibriant force.
April 9, 2015 by Godson

phy
Two constant forces act on an object of mass m = 4.50 kg object moving in the xy plane as shown in the figure below. Force 1 is 21.0 N at 35.0°, and force 2 is 47.0 N at 150°. At time t = 0, the object is at the origin and has velocity (3.70 + 2.25) m/s. (a) Express the two ...
November 20, 2012 by patel

math
an object accelerates only if the forces acting on it in one drection are greater than the forces in the opposite direction, all of the following objects will accelerate except
January 17, 2009 by joshua

physics
At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of F = 88.9 N at an angle of 56◦ , as shown in the figure. The acceleration of gravity is 9.8 m/s 2 . The box of books has a mass of 17 kg and ...
March 15, 2015 by Liz

physics
Find the net torque (magnitude and direction) produced by the forces F1 (F1 = 17.3 N) and F2 (F2 = 26.1 N) about the rotational axis shown in the drawing. The forces are acting on a thin rigid rod, and the axis is perpendicular to the page. (x = 0.323 m, y = 1.021 m, = 28.6°)
October 26, 2011 by Sami

physics
Find the net torque (magnitude and direction) produced by the forces F1 (F1 = 17.3 N) and F2 (F2 = 26.1 N) about the rotational axis shown in the drawing. The forces are acting on a thin rigid rod, and the axis is perpendicular to the page. (x = 0.323 m, y = 1.021 m, = 28.6°)
October 26, 2011 by Sami

physics
A figure shows two forces acting on an object. They have magnitudes F1 = 6.3 N and F2 = 2.1 N. What third force will cause the object to be in equilibrium?
December 3, 2010 by emerald

physic
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 439 N and F2 = 365 N. (Assume up and to the right as positive directions.) (a) What is the resultant of these two forces? magnitude___ N direction ____° to the right of the ...
October 15, 2009 by Chan

Physics-I would like to ask once more!
A ball is attached by two spring as shown [vvvOvvv]. If the mass is displaced a distance â–³x BELOW the equilibrium position h (see figure A). Determine whether vertical SHM is possible for the system shown.If so, find the natural frequency. (Figure A,it shows where d, h, â–³x...
December 4, 2010 by Marco Tsang

math
Thr figure below is made up of four congruent circles Each circle is tsngent to two of the other 3 circles as shown. If the radius of each circle is 6 units, what is the area of the shaded region inthe figure below? Express your answer as adecimal to the nearest hundredth.
June 26, 2012 by aunika

"Toy Car A" is propelled by elastic force. The other forces acting on the car are gravity (pulling the car down) and friction force (between the car and the floor). What UNBALANCED forces are acting on the car? "Toy Car B" is propelled by air resistance. The other forces ...
December 19, 2013 by Alexandra

physics
The location of two particles at t = 0 is shown in the figure below. The particles are initially at rest. Each particle is subject to a constant force, as indicated in the figure. (Take m1 = 2.06 kg and m2 = 0.95 kg.) (a) Find the position of the center of mass at t = 0. xcm...
February 10, 2011 by Anonymous

science
Three horizontal ropes pull on a large stone stuck in the ground, producing the vector forces and shown in the figure below. Find the magnitude and direction of a fourth force on the stone that will make the vector sum of the four forces zero. The magnitude of vector A is 99.5...
September 8, 2014 by Anonymous

Science
A man enters an elevator holding two boxes-one on top of the other. The top has a mass of 6.0 kg and the buttom box has a mass of 8.0 kg. The man sets the two boxes on a metric scale registers a value of 166N; this is the upward force upon the bottom box. Determine the ...
July 11, 2015 by Charlotte

Probability
A box contains 95 pink rubber bands and 90 brown rubber bands. You repeatedly choose a rubber band from the box, record the color, and put the rubber band back in the box. The results are shown in the table below. Find the experimental probability of each color based on the ...
May 5, 2015 by I need help

Physics
*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...
October 8, 2006 by Justin

physics
Consider the system shown, with m1 = 2.0 kg, m2 = 3.0 kg, and á = 30o. The force F acts horizontally to the left and the kinetic coefficient of friction between m1 and the incline is ìk = 0.40. The mass m2 is moving up at a constant speed. (a) What is the magnitude of F? (b) ...
February 19, 2013 by Stehlin

Simmons
A 2.0 kg box rests on a plank that is inclined at an angle of 65° above the horizontal. The upper end of the box is attached to a spring with a force constant of 17 N/m, as shown in the figure. If the coefficient of static friction between the box and the plank is 0.30, what ...
May 8, 2015 by Lisa

Science (Balanced/Unbalanced Forces)
"Toy Car A" is propelled by elastic force. The other forces acting on the car are gravity (pulling the car down) and friction force (between the car and the floor). What UNBALANCED forces are acting on the car? "Toy Car B" is propelled by air resistance. The other forces ...
December 19, 2013 by Alexandra

physics
In the figure below, a constant force of magnitude 82.0 N is applied to a 2.55 kg shoe box at angle = 64.5°, causing the box to move up a frictionless ramp at constant speed. How much work is done on the box by a when the box has moved through vertical distance h = 0.180 m?
October 14, 2012 by Anonymous

physics
A box is resting on a table frictionless). Determine the weight of the box and the normal force acting on it. (a) If the box was pushed down, with a force of 40N, determine again the normal force acting on the box. (b) If the box was pulled up with a force of 40N, what now is ...
July 22, 2008 by Ruby

Physic
The free-body diagram in the drawing shows the forces that act on a thin rod. The three forces are drawn to scale and lie in the plane of the screen. Are these forces sufficient to keep the rod in equilibrium, or are additional forces necessary f3 ' ' ' f1 ------>---rod...
May 7, 2007 by Panda

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