A 25 kg box is set on a flat surface with us=0.62 and uk=0.49. A force of 100N is applied to the box through a rope which makes and angle of 30 degrees with the horizon. (a)what's the component of

46,999 results
  1. physics multiple choice

    A person pushes horizontally with constant force P on a 230 N box resting on a frictionless horizontal floor. Which of the following statements about this box is correct? A.The box will accelerate no matter how small P is. B. The box will not accelerate

  2. simple physics

    You push downward on a box at an angle 25° below the horizontal with a force of 750 N. If the box is on a flat horizontal surface for which the coefficient of static friction with the box is 0.73, what is the mass of the heaviest box you will be able to

  3. physics

    9) A force in the +x-direction with magnitude F(x) = 18.0 N – (0.530 N/m) x is applied to a 6.00-kg box that is sitting on a frictionless surface. F(x) is the only horizontal force on the box. If the box is initially at rest at x = 0, what is its speed

  4. Physics

    A box with mass 13.0 kg moves on a ramp that is inclined at an angle of 55.0∘ above the horizontal. The coefficient of kinetic friction between the box and the ramp surface is μk = 0.300. FIND A) Calculate the magnitude of the acceleration of the box if

  5. Physics

    A 20.0 kg box rests on a table. what is the weight of the box and the normal force acting on it? A 10.0 kg box is set on top of the 20.0kg box. Determine the normal force that the table exerts on the 20.0kg box and the normal force that the 20.0kg box

  6. physics

    A stock room worker pushes a box with mass 11.2 kg on a horizontal surface with a constant speed of 4.50 m/s. The coefficient of kinetic friction between the box and the surface is 0.25. a) What horizontal force must be applied by the worker to maintain

  7. Physics

    You drag a heavy box along a rough horixontal floor by a horizontal rope. Identify the reaction force to each ofthe follwing forces: A) the pull of the tope on the box. B) the friction force on the box C) the normal force on the box, and D) the weight of

  8. Physics

    1. A worker pulls horizontally on a crate across a rough horizontal surface, causing it to move forward with constant velocity. Force A is the force exerted by the worker and force B is the force of friction due to the surface. What is the relationship

  9. physics

    A force in the +x-direction with magnitude F(x)=18.0N−(0.530N/m)x is applied to a 8.30 kg box that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box. Part A If the box is initially at rest

  10. Physics

    A 54 kg box is being pushed a distance of 7.0 m across the floor by a force P whose magnitude is 153 N. The force P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.25. Determine the work done on the box by each of the

  11. 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

  12. physics

    A 55.0-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.300. What horizontal force must be applied to the box for it to start sliding along the surface?

  13. physics

    A box has mass 13 kg and is at rest on a flat floor. A minimum force of 47 N is needed to push the box so it moves across the floor. What is the coefficient of static friction between the box and floor?

  14. Physics

    A box is pushed by a 750 N force that acts at a 30 degree angle with a friction less surface.The force pushes a box that has a weight of 500N a distance of 15 meters. How much work is done on the box?

  15. Math Plz help

    When Tyson opens and lays a cereal box out flat, he sees that the top and the bottom of the box both measure 11 inches by 8 inches, the sides of the box both measure 11 inches by 6 inches, and the front and back of the box both measure 8 inches by 6

  16. Physical Science

    A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 26.0° below the horizontal is applied to the box. What is the minimum coefficient of static friction between the box and the surface required for the box to remain

  17. Physics multiple choice

    1. The normal force is always less than or equal to force of gravity a) True b) False 2. What is the value of the normal force? (there is an image of a box with a mass of 10kg and it is sitting on a flat horizontal surface) a) 98 N [up] b) 98 N [down] c)

  18. physics

    A 2.7-kg box is released on a horizontal surface with an initial speed of 2.9 m/s. It moves on the surface with a deceleration of 0.27 m/s^2. Calculate the kinetic friction force on the box. I couldn't find an example of this anywhere but...is it:

  19. science

    A force of 16.0 newtons is sufficient to set a box that is at rest into motion. If the coefficient of static friction is 0.380, what is the normal force acting on the box?

  20. Science

    A horizontal force of 24 N is being applied to a box on a level surface. The box is accelerating at the rate of2280889against a frictional force of 14 N. What is the mass of the box?

  21. Physics

    A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 20.7° below the horizontal is applied to the box. The coefficient of kinetic friction between the box and the surface is 0.300. What is the acceleration of the box?

  22. physics

    Joe pushes horizontally on a heavy box across a rough surface at constant speed. Which one of the following statements concerning this situation is false? If Joe stops pushing on the box, the box will stop sliding eventually. If Joe doubles his force on

  23. Physics

    Boxes A and B are in contact on a horizontal, frictionless surface. Box A has mass 21.0 kg and box B has mass 8.0 kg . A horizontal force of 100N is exerted on box A. What is the magnitude of the force that box A exerts on box B?

  24. Physics

    A 10-kg wooden box rests on a ramp that is lying flat. The coefficient of static friction is 0.50, and the coefficient of kinetic friction is 0.30. What is the friction force between the box and ramp if no force horizontal force is applied to the box? a 20

  25. physisc

    A force in the +x-direction with magnitude F(x)=18.0N−(0.530N/m)x is applied to a 7.40 kg box that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box.If the box is initially at rest at x=0,

  26. Physics

    A force in the +x-direction with magnitude F(x)=18.0N−(0.530N/m)x is applied to a 8.70kg box that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box. If the box is initially at rest at x=0,

  27. math

    Students noticed that the path of water from a water fountain seemed to form a parabolic arc. They set a flat surface at the level of the water spout and measured the maximum height of the water from the flat surface as 6 inches and the distance from the

  28. physics multiple choice

    A person pushes horizontally with constant force P on a 230 N box resting on a frictionless horizontal floor. Which of the following statements about this box is correct? A.The box will accelerate no matter how small P is. B. The box will not accelerate

  29. physics

    The question is: Sometimes, road surfaces have banked curves. Use an FBD to explain how this helps cars to make turns more safely. My answer is: Road surfaces have banked curves to allow for more centripetal force, which then allows for vehicle to remain

  30. Physics

    A box is on a flat plane and has a force of 16 N applied downward to it at an angle of 55 degrees. The box has a mass of 28 kg. What is the minimum horizontal force F needed to make the box start moving in (Figure 1)? The coefficients of kinetic and static

  31. Physics

    ohh sorry, in my first question... A 15 kg box sits on a horizontal FORCE. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be

  32. physics

    Two boxes (b1 = 23 kg and b2 = 57 kg) are being pushed across a horizontal frictionless surface, as the drawing shows. The 48-N pushing force is horizontal and is applied to the 23-kg box, which in turn pushes against the 57-kg box. Find the magnitude of

  33. Physics

    A 15 kg box sits on a horizontal force. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be the magnitude of P to get the box

  34. Kinematics

    A 55.0kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is .300. What horizontal force must be applied to the box for it to start sliding along the surface? Please write out the solution. I am getting

  35. Physics

    A 5kg box is pulled for a distance of 12m with a force of 20N along frictionless surface. The force is applied at an angle that is 15 deg. above the horizontal. a.) how much work was done by the applied force? b) how fast will the box be moving at the end

  36. Math

    1. When Tyson opens and lays a cereal box out flat, he sees that the top and the bottom of the box both measure 11 inches by 8 inches, the sides of the box both measure 11 inches by 6 inches, and the front and back of the box both measure 8 inches by 6

  37. 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

  38. physics

    A box,is resting on a smooth(frictionless)table.The mass of the box is 10 kg. (a)Determine the weight of the box and the normal force acting on(b)If the box is pushed down with a force of 40 Newton determine the normal force(c) If the box was pulled up

  39. Physics

    A man accelerates a 25 kg box by pushing it with a force of 60 N over a distance of 10.0 m on a surface that provides a frictional force of 10 N Determine the velocity of the box after the man stops pushing in two ways a) by calculating net force,the

  40. physics - work 2

    A force of 100N pulls a box of weight 200N along a smooth horizontal surface (angle = 45) 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.

  41. Physics

    A box of mass m1 = 10.0 kg rests on a smooth, horizontal floor next to a box of mass m2 = 5.0kg. You push on the box 1 with a horizontal force of F = 31.8 N: a.)What net force on box 2 will cause it to have this acceleration? b.)What the force on box 1 on

  42. Physics

    A horizontal spring with spring constant 110N/m is compressed 16cm and used to launch a 2.8kg box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the box on

  43. Physics

    A horizontal spring with spring constant 110N/m is compressed 16cm and used to launch a 2.8kg box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the box on

  44. physics

    A 1.82 kg box moves back and forth on a horizontal frictionless surface between two different springs, as shown. The box is initially pressed against the stronger spring (k1 = 37.0 N/cm), compressing it 3.10 cm, and then is released from rest. By how much

  45. physic

    A force of 75.0 N in the horizontal direction is required to set a 37.3-kg box, initially at rest on a flat surface, in motion. After the box begins to move, a horizontal force of 51.3 N is required to maintain a constant speed. (a) What is the coefficient

  46. Physic

    A 25 kg box is set on a flat surface with us=0.62 and uk=0.49. A force of 100N is applied to the box through a rope which makes and angle of 30 degrees with the horizon. (a)what's the component of Fa that is attempting to move the box sideways? (b) what's

  47. Science

    Which of the following boxes below represent a stable system? Describe how a disturbance to this box would affect it. Use the terms center of mass and equilibrium in your response. Box A: Shaped like a diamond on a flat surface with an arrow pointing

  48. 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

  49. Physics

    Two boxes, mass 4.0 kg and 5.0 kg are set next one another on a frictionless surface. The first box is pushed with a force of 35 N. What normal forces does the second box exert on the first box during this process? (ans: 19 N) How do you do this question?

  50. Physics

    A box of mass 50.0 kg is connected to a second box with a mass of 54.0 kg. Both are sitting on a horizontal surface and the coefficient of kinetic friction between the surface and each box is 0.51. If the second box is pulled away from the first box with a

  51. Physics

    There is a 5kg box sitting on top of a 10kg box. The static friction between them is .5. What is the maximum tension that can be placed on the bottom box without causing the 5kg box to slip. The surface is flat.

  52. emgineering

    A box with a mass of 5.0 kg is placed on a flat sloping surface elevated at 40o to the horizontal. The coefficient of static friction is 0.76. It is prevented from slipping down the slope by a force applied parallel to the slope. What is the magnitude of

  53. Physics

    Two boxes of mass 7.40 and 7.00 kg are in contact and are accelerated across a horizontal surface by an force of 51.49 N applied parallel to the surface and pushing on the lighter box. The magnitude of the frictional force between the surface and the

  54. Math

    Check my answer please? Yuri is wrapping presents. The first box measures 9 inches by 12 inches by 2 inches. He has a second box with dimensions that are each half of the length of the first box. How does the surface area of the second box compare with the

  55. Physics Help

    A force sensor is used to measure a force applied to a 9.1 kg box on a hard, horizontal surface. It records that the box starts to move when the force is equal to 26.9 N. This force makes the box start to move with an acceleration of 0.2 m/s2. Find mu sub

  56. physics

    A box is being accelerated across a rough, level surface. A force is being applied to the box in an upward and a rightward direction (as shown below). This force makes an angle of 30 degrees with the horizontal. The force of friction experienced by box

  57. Physics

    Randy pushes a 30.0 kg box resting on a rough surface by exerting a force of 85.0 N. The box did not move. What is the coefficient of static friction between the box and the surface where it lies?

  58. physics

    A box is pushed along a surface with constant horizontal force. The surface is frictionless. The box starts from rest and travels 6.0m in 2.0s. if the experiment is repeated but with the box's mass doubled, how far will it travel?

  59. Physics

    A 15 kg box sits on a horizontal force. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be the magnitude of P to get the box

  60. Physics

    A 65kg box is sitting on a level surface, and a 208N force is pulling on the box to the right. find both the normal force and acceleration of the box

  61. Physics

    Two boxes of mass 7.40 and 7.00 kg are in contact and are accelerated across a horizontal surface by an force of 51.49 N applied parallel to the surface and pushing on the lighter box. The magnitude of the frictional force between the surface and the

  62. Physics

    A force sensor is used to measure a force applied to a 7.5 kg box on a hard, horizontal surface. It records that the box starts to move when the force is equal to 16.5 N. This force makes the box start to move with an acceleration of 0.5 m/s2. Find s and k

  63. physics- multiple choice

    1. The normal force is always less than or equal to force of gravity a) True b) False 2. What is the value of the normal force? (there is an image of a box with a mass of 10kg and it is sitting on a flat horizontal surface) a) 98 N [up] b) 98 N [down] c)

  64. Math

    When Antonio opens and lays a cereal box Out flat he sees that the top and bottom of the box each measure 2“ x 9“ ,the sides of the box each measure 2“ x 11“ in the front and back of the box each measure 9“ x 11“. what is the surface area up

  65. science

    A 2.7 kg box is released on a horizontal surface with an initial speed of 2.9 m/s. It moves on the surface with an acceleration of .27 m/s squared. Calculate the kinetic friction force on the box. The coefficent of the kinetic force is .156.

  66. science

    State which reason for the earth being flat is true. A) Geocentric model causes the earth to take on a flat shape. B)The gravitational force pulls everything down including the planet itself. C) The Sun would not be able to exert gravity on Earth unless it

  67. physics

    Could anyone help me set up this equation? I drew my force body diagram but wasn't sure how to include the downward force (im assuming i use either sine or cosine?) A force of 340 N pushes a 54 kg object. Find the acceleration of the box if the force makes

  68. physics

    Unless otherwise stated, all objects are located near the Earth's surface, where = 9.80 . When a horizontal force of 340 is applied to a 68.0 box, the box slides on a level floor, opposed by a force of kinetic friction of 150 . Part A What is the magnitude

  69. physics

    1) Two boxes are placed are placed side by side on a frictionless surface so that they touch each other. Box A has a mass of 4 kg. Box B has a mass of 12 kg. A constant force of 24 N is applied to box A. What force does box A exert on box B?

  70. physics

    A wooden box is being pulled 10m from its original position along a horizontal surface by constant force of 25N calculate the work done on the box if the force is applied horizontally, and the force makes an angle of 37°.

  71. Physics

    1. Tyler pulls a box full of baby ferrets across the floor by means of a rope that is tied to the box. The rope makes an angle of 41 degrees with the horizontal and tyler pulls on the rope with a force of 60N. a)What is the horizontal component of the

  72. physics

    a box with a mass of 10 kg slides on a surface at 30m/s the coeffiecent of kinetic friction between the box and the surface is 0.5 what is the amount of frictional force

  73. Physics

    2. Tyler pulls a box full of baby ferrets across the floor by means of a rope that is tied to the box. The rope makes an angle of 41 degrees with the horizontal and tyler pulls on the rope with a force of 60N. a)What is the horizontal component of the

  74. physics

    A 3.4-kg box is released on a horizontal surface with an initial speed of 4.8 m/s. It moves on the surface with a deceleration of 0.45 m/s2. Calculate the kinetic friction force on the box.

  75. physics

    A 2.7-kg box is released on a horizontal surface with an initial speed of 2.9 m/s.It moves on the surface with a deceleration of 0.27 m/s^2.Calculate the kinetic friction force on the box

  76. Physics

    Two boxes on a horizontal surface, as shown in the figure above, are moving together under the influence of a horizontal force, F. The coefficient of kinetic friction between the boxes and the surface is 0.40. Use g = 10 m/s2. In case (a), a horizontal

  77. physics

    A force in the +x-direction with magnitude F(x)=18.0N−(0.530N/m)x is applied to a 7.60kg box that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box. If the box is initially at rest at x=0,

  78. physics

    A 2.7 kg box is released on a horizontal surface with an inital speed of 2.9m/s. It moves on the surface with a deceleration of 0.27m/s^2. Calculate the kinetic friction force on the box?

  79. Physics

    A box is being pulled along a rough horizontal surface by a rope which has a tension of 10N at an angle of 60 degrees with the horizontal. If the box moves with constant velocity find the frictional force and the normal reaction force given the weight of

  80. physics

    In the following diagram, the hanging mass is 3.5kg, and the box has a mass of 1.5kg. If the force of the box with the surface is 0.80N, a) find the acceleration of the masses b)determine the force of tension in the string The diagram shows a box on a

  81. physics

    what equation would you use if you wanted to find the net x-direction force on the box example: here is the problem... A box of mass 24.0 kg is subject to an applied force of 245 N with a depression angle of 31.2°, and it accelerates to the right. The

  82. Physics

    A mass exerts 45.0N on a 30 kg box, making it slide over a smooth surface for a distance of 10.0m . He stops pushing, just as the box crosses the 10.0m mark. (a) what is the work done by the man on the box? (b) what form of energy does the box posses after

  83. physics

    Two boxes of fruit on a frictionless horizontal surface are connected by a light string as in the figures below, where m1 = 10 kg and m2 = 19 kg. A force of 46 N is applied to the 19 kg box. Repeat the problem for the case where the coefficient of kinetic

  84. physics

    Suppose you moved a box across a rough horizontal surface with a 50 N force over a displacement of 10 m. If the frictional force at the interface was 10 N, how much work was done to the box?

  85. Math re-post for Jason W

    [Jason — Be sure to use Ask a New Question when posting your own questions. Don't piggyback on someone else's thread.] When Antonio opens and lays a cereal box out flat, he sees that the top and the bottom of the box each measure 2 inches by 7 inches,

  86. PHYSICS

    A 75 kg box starts from the top of a ramp at point A. The coeff of fric. between surface & box is 0.275. The avg. normal force of the surface on the box (while it is on the ramp) is 3/4 of its weight. A) What is the velocity of the box right before it hits

  87. physics help grade11

    In a physics laboratory experiment, a 6.00 kg box is pushed across a flat table by a horizontal force F. A. If the box is moving at a constant speed of 0.35 m/s and the coefficient of friction is 0.12. What is the magnitude of F? B. What is the magnitude

  88. physics

    a 125Newton box is pulled east along a horizontal surface with a force of 60Newton acting at an angle of 42degrees. if the force of friction on the box is 15 newton, what is the acceleration?

  89. Physics

    1) A box m1 = 9.30 kg is stacked on top of another box m2 = 20.0 kg, placed on the floor inside an elevator. When the elevator is accelerating downward with a magnitude of 3.72 m/s2, what is the normal force that box m1 exerts on box m2? What is the normal

  90. physics

    A 0.40kg piece of putty is dropped from a height of 2.9m above a flat surface. When it hits the surface, the putty comes to rest in 0.32s . What is the magnitude of the average force exerted on the putty by the surface? I keep getting 9.4 as the answer,

  91. 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.

  92. Physical science

    A 11-kg box is dragged across a frictionless surface by a force F=55N. the box travels 4.0ft. what is the work done by the applied force F and the work done by the normal force?

  93. Physics

    An object having a mass of 25 grams revolves uniformly in a horizontal circle. It is attached by a wire 75 cm long to a pin set in the surface. If the box makes two complete revolutions (1 revolution= .5 seconds) per second, find a) its speed b) tension

  94. physics

    A box of mass 5 kg is pulled along a horizontal frictionless surface by a force of 40N inclined @ 30dgrees. Calculate A)the work done by the force over a distance. B)the speed gained by the box after travelling 10m.

  95. math

    When Antonio opens and lays a cereal box out flat, he sees that the top and the bottom of the box each measure 2 inches by 7 inches, the sides of the box each measure 2 inches by 12 inches, and the front and back of the box each measure 7 inches by 12

  96. mechanics

    A 2kg box sits at rest on a level floor. Two children push on the box at the same time. Eli pushes horizontally to the right on the box with a force of 4N. Jamie pushes straight downward on the box with a force of 3N. The box does not move (there is

  97. physics

    A 200.0N steel box resting on a smooth surface is pushed to the right by a force of 50N, if the coefficients of starting and sliding friction are 0.74 and 0.53 respectively will the box move and if so what force isrequired to keep it moving at constant

  98. Physic

    a box is being pushed at a constant velocity. The coefficient of kinetic friction between the box and the surface is 0.3 . At one point in the journey the coefficient of kinetic friction between the box and the surface suddenly jumps to 0.55. if the force

  99. physics

    A 25 kg box slides, from rest, down a 9-m-long incline making an angle 15 degrees with the horizontal. The speed of the box when it reaches the bottom of the incline is 2.40 m/s. (a) What is the coefficient of kinetic friction between the box and the

  100. physics

    A horizontal spring with spring constant 73.2 N/m is compressed 16.7 cm and used to launch a 2.42 kg box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the

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