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A dockworker loading crates on a ship finds that a 20 kg crate, initially at rest on a horizontal surface, requires a 73 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal

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  1. physics

    A dockworker loading crates on a ship finds that a 19-kg crate, initially at rest on a horizontal surface, requires a 83-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 53 N is required to keep it moving
  2. Physics

    A dockworker loading crates on a ship finds that a 34.0-kg crate, initially at rest on a horizontal surface, requires a 72.0-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 51.0 N is required to keep it
  3. physics

    A dockworker loading crates on a ship finds that a 17-kg crate, initially at rest on a horizontal surface, requires a 70-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 53 N is required to keep it moving
  4. pysics

    A dockworker loading crates on a ship finds that a 17-kg crate, initially at rest on a horizontal surface, requires a 71-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 57 N is required to keep it moving
  5. Physics

    A dockworker loading crates on a ship finds that a 22-kg crate, initially at rest on a horizontal surface, requires a 80-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 59 N is required to keep it moving
  6. Physics

    A dockworker loading crates on a ship finds that a 23-kg crate, initially at rest on a horizontal surface, requires a 75-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 50 N is required to keep it moving
  7. physics

    A dockworker loading crates on a ship finds that a 25 kg crate, initially at rest on a horizontal surface, requires a 84 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 50 N is required to keep it moving
  8. physics

    A dockworker loading crates on a ship finds that a 24 kg crate, initially at rest on a horizontal surface, requires a 79 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 57 N is required to keep it moving
  9. physics

    A dockworker loading crates on a ship finds that a 20 kg crate, initially at rest on a horizontal surface, requires a 73 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 50 N is required to keep it moving
  10. Physics

    A dockworker loading crates on a ship finds that a 22-kg crate, initially at rest on a horizontal surface, requires a 76-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 59 N is required to keep it moving
  11. Physics

    A dockworker loading crates on a ship finds that a 19-kg crate, initially at rest on a horizontal surface, requires a 70-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 60 N is required to keep it moving
  12. physics

    A dockworker loading crates on a ship finds that a 21-kg crate, initially at rest on a horizontal surface, requires a 70-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 51 N is required to keep it moving
  13. physics

    A dockworker loading crates on a ship finds that a 21-kg crate, initially at rest on a horizontal surface, requires a 70-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 51 N is required to keep it moving
  14. physics

    A dockworker loading crates on a ship finds that a 20 kg crate, initially at rest on horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 60 N is required to keep it moving with a constant speed. Find the
  15. Physics

    A dockworker loading crates on a ship finds that a 25-kg crate, initially at rest on a horizontal surface, requires a 70-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 54 N is required to keep it moving
  16. Physics

    A dockworker loading crates on a ship finds that a 34.0-kg crate, initially at rest on a horizontal surface, requires a 72.0-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 51.0 N is required to keep it
  17. Physics

    A dock worker loading crates on a ship finds that a 18 kg crate, initially at rest on a horizontal surface, requires a 71 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 46 N is required to keep it
  18. physics

    A dock worker loading crates on a ship finds that a 25 kg crate, initially at rest on a hori- zontal surface, requires a 90 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 51 N is required to keep it
  19. physics

    A dock worker loading crates on a ship finds that a 29 kg crate, initially at rest on a horizontal surface, requires a 90 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 60 N is required to keep it
  20. physics

    A dock worker loading crates on a ship finds that a 29 kg crate, initially at rest on a horizontal surface, requires a 90 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 60 N is required to keep it
  21. Physics

    A dock worker loading crates on a ship finds that a 24 kg crate, initially at rest on a horizontal surface, requires a 64 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 46 N is required to keep it
  22. Physics - Scott help!

    1. A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a force just exceeding 162 N and parallel to the slope is sufficient to cause the block to start moving, find the coefficient of
  23. Physics

    1. A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a force just exceeding 162 N and parallel to the slope is sufficient to cause the block to start moving, find the coefficient of
  24. physics

    Two crates rest on top of one another.There is a crate of mass 4.62 kg on top of another crate of mass 2.19 kg. The coefficient of friction between the lower crate and the floor is μk = 0.440 and the coefficient of static friction between the two crates
  25. physics

    Two crates rest on top of one another.There is a crate of mass 4.62 kg on top of another crate of mass 2.19 kg. The coefficient of friction between the lower crate and the floor is μk = 0.440 and the coefficient of static friction between the two crates
  26. physics

    Two crates rest on top of one another.There is a crate of mass 4.62 kg on top of another crate of mass 2.19 kg. The coefficient of friction between the lower crate and the floor is μk = 0.440 and the coefficient of static friction between the two crates
  27. physics

    Two crates rest on top of one another.There is a crate of mass 4.62 kg on top of another crate of mass 2.19 kg. The coefficient of friction between the lower crate and the floor is μk = 0.440 and the coefficient of static friction between the two crates
  28. university physics

    there is a crate of mass 4.67 kg on top of another crate of mass 2.29 kg. The coefficient of friction between the lower crate and the floor is μk = 0.280 and the coefficient of static friction between the two crates is μs = 0.820. If the crates start at
  29. physics

    Two workers are loading crates onto a pick up truck. Worker 1 lifts his crate straight up from the ground to the truck. Worker 2 slides his crate up a ramp which has frictionless rollers. Which statement is true about the work being done on the crate?
  30. physics

    Two crates, of mass 75 kg and 110 kg, are in contact and at rest on a horizontal surface. A 620-N force is exerted on the 75-kg crate. If the coefficient of kinetic friction is 0.15, calculate (a) the acceleration of the system, and (b) the force that each
  31. physics

    (II) Two crates, of mass 75 kg and 110 kg, are in contact and at rest on a horizontal surface. A 620-N force is exerted on the 75-kg crate. If the coefficient of kinetic friction is 0.15, calculate (a) the acceleration of the system, and (b) the force that
  32. physics

    Two crates, of mass 75 kg and 110 kg, are in contact and at rest on a horizontal surface. A 620-N force is exerted on the 75-kg crate. If the coefficient of kinetic friction is 0.15, calculate (a) the acceleration of the system, and (b) the force that each
  33. physics

    Two crates, of mass 75 kg and 110 kg, are in contact and at rest on a horizontal surface. A 620-N force is exerted on the 75-kg crate. If the coefficient of kinetic friction is 0.15, calculate (a) the acceleration of the system, and (b) the force that each
  34. phy

    Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15. (a) Calculate the acceleration of the system.(to the
  35. Physics

    A mover finds that a 20 kg crate initially at rest requires a 75 N horizontal force to set the crate in motion, but only a 60 N force to maintain a constant velocity. Find a) the co-efficient of static friction between crate and floor. b) the co-efficient
  36. Physics

    PLEASE HELP! DUE TOMORROW! In a warehouse crates are placed at the top of a ramp and an employee has to slowly (at a constant velocity) lower them down the ramp. Initially the crates are stationary so the employee needs to start them moving by pulling on
  37. physics

    Two crates, of mass m1 = 80 kg and m2 = 115 kg, are in contact and at rest on a horizontal surface. A 620 N force is exerted on the 80 kg crate. The coefficient of kinetic friction is 0.15.(a) Calculate the acceleration of the system.(b) Calculate the
  38. physics

    Two crates A and B connected together by a light rope are pulled along a factory floor by an applied force, F. Crate A has a mass of 50 kg and the coefficient of friction (μ) between crate A and the floor is 0,25. Crate B has a mass of 35 kg and μ
  39. physics

    Two crates, of mass 75 kg and 110 kg, are in contact and at rest on a horizontal surface. A 620-N force is exerted on the 75-kg crate. If the coefficient of kinetic friction is 0.15, calculate (a) the acceleration of the system, and (b) the force that each
  40. Physics

    A 1200 N force is exerted on a 700 kg crate to move it across a loading dock. If the coefficient of friction is .50 what is the crates acceleration?
  41. Physics

    Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15 a)Calculate the acceleration of the system. b)
  42. College Physics

    Two crates are connected by a massless rope that passes over a pulley. If the crates have mass 33 kg and 82 kg, find their acceleration. If the system begins at rest, with the more massive crate a distance 12 m above the floor, how long does it take for
  43. physics

    Two crates are connected by a massless rope that passes over a pulley as shown in the figure below. If the crates have mass 32 kg and 80 kg, find their acceleration. If the system begins at rest, with the more massive crate a distance 11 m above the floor,
  44. Physics

    A crate is initially at rest on a rough, horizontal floor. The crate moves in a straight line as it is pushed resulting in the crate speeding up at a constant rate of 3.89 m/s2. After a while, the crate is no longer being pushed and the crate slows down at
  45. Physics

    drawing shows a 25.0-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces, and , are applied to the crate, and it begins to move. The coefficient of kinetic friction between the crate and the floor
  46. physics

    The drawing shows a 20.1-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces, and , are applied to the crate, and it begins to move.The coefficient of kinetic friction between the crate and the
  47. physics

    The drawing shows a 25.1-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces, 1 and 2, are applied to the crate, and it begins to move. The coefficient of kinetic friction between the crate and the
  48. PHYSICs

    The drawing shows a 29.7-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces are applied to the crate, and it begins to move. The coefficient of kinetic friction between the crate and the floor is
  49. Dynamics

    The man slides the 100-kg crate across force of 200 N. If the crate was initially at rest, how far will the crate move before its speed is 1 m/s? The coefficient of kinetic friction between the crate and the floor is 0.18. The man is pulling the crate at a
  50. Physics

    Two crates of fruit are released from the top of a ramp inclined at 25 degrees from the horizontal and 2.5 meter long. The two crates consist of an apple crate of mass 35 kg that is placed in front of a watermelon crate of mass 80 kg. The apple crate has a
  51. Physics Homework

    The drawing shows a 29.7-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces, F1=88N and F2=54N, are applied to the crate, and it begins to move. The angle is 55 degrees. The coefficient of kinetic
  52. physics

    The drawing shows a 29.7-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces, F1=88N and F2=54N, are applied to the crate, and it begins to move. The angle is 55 degrees. The coefficient of kinetic
  53. Physics

    A crate of mass m 1 =12.4 kg is pulled by a massless rope up a 36.9 degrees ramp. The rope passes over an ideal pulley and is attached to a hanging crate of mass m 2 =16.3 kg . The crates move 1.40 m, starting from rest. Find the work done by gravity on
  54. physics

    Two crates, of mass 65 kg and 125 kg, are in contact and at rest on a horizontal surface. A 650-N force is exerted on the 65-kg crate. If the coefficient of kinetic friction is 0.18, calculate the force that each crate exerts on the other.
  55. physics

    two crates, of mass 75 kg and 113 kg, are in contact and at rest on a horizontal surface. A 727 N force is exerted on the 75 kg crate. If the coefficient of kinetic friction is 0.15, calculate the following: a)the acceleration of the system b) the force
  56. science

    Two crates , one with mass 4.00 kg and the other with 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope. A woman wearing golf shoes(so she can get traction on the ice)pulls horizontally on the 6.00-kg crate with a force F
  57. PHYSICS

    Two crates , one with mass 4.00 kg and the other with 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope. Awoman wearing golf shoes(so she can get traction on the ice)pulls horizontally on the 6.00-kg crate with a force F
  58. physics

    If motor M exerts a force of F=(10t2+100)N on the cable, where t is in seconds, determine the velocity of the 25kg crate when t=4s . The coefficients of static and kinetic friction between the crate and the plane are μs=0.3 and 0.25 μk=0.25 . The crate
  59. college physics

    Two workers are loading crates onto a pick up truck. Worker 1 lifts his crate straight up from the ground to the truck. Worker 2 slides his crate up a ramp which has frictionless rollers. Which statement is true about the work being done on the crate? a.
  60. algebra

    The ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is 12 feet, the height of the loading dock, BC, is 6 feet. What is the height of the loading dock DE? ( BD is 22feet) A- 10feet B-
  61. math

    The ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is 12 meters, the height of the loading dock, BC, is 4 meters. What is the height of the loading dock DE? A. 12m B. 8m C. 9m D. 15m
  62. Math

    The ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is 12 meters, the height of the loading dock, BC, is 4 meters. What is the height of the loading dock DE? A. 12m B. 8m C. 9m D. 15m
  63. MATH!!

    the ramp shown below is used to move crates of oranges to loading docks at diffrent heights.when the horizontal distance ab is 15 feet the height of the loading dock,bc,is 3 feet.what is the height of the loading dock de
  64. Physics

    A 100 kg crate rest at the back of the bed of a pick up truck. The length of the crate is 1 m in the length of the bed is 4 m. There is no friction between the bed of the truck in the crate. If the truck is traveling at 25 m/s just before it hits the wall,
  65. Math, need help asap

    The ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is 12 meters, the height of the loading dock, BC, is 4 meters. What is the height of the loading dock DE? 12 m 8 m 9 m 15 m
  66. Physics

    Two crates, one with mass 4.00 kg and the other with mass 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope. A woman wearing golf shoes (so she can traction on the ice) pulls horizontally on the 6.00 kg crate with a force
  67. Physics

    Search: The figure shows three crates being pushed over a concrete floor by a horizontal force of F magnitude 440 N. The masses of the crates are m1 = 30.0 kg, m2 = 10.0 kg, and m3 = 20.0 kg. The coefficient of kinetic friction between the floor and
  68. physics

    At the end of the semester, you are loading your gear into a van to go home. In loading the van, you can either lift a 45.0-kg crate straight up(method 1) or push it up a 3.00-m-long ramp that is inclined at an angle above the horizontal (method 2).In both
  69. physics

    A 130-kg crate is initially at rest on a horizontal frictionless surface. An applied force of 400 N to the right is exerted on the crate, causing it to move and cover a distance of 26.0 m. At the end of its path, the crate is found to be moving at a speed
  70. Physics

    A crate with a total mass of 50 kg is initially at rest on a level floor.What is the weight of the crate?
  71. physics

    A 100kg crate is propelled uphill by a spring initially loaded with 400J of potential energy. the crate starts from rest. Point b is 0.2 m above point A. What is speed of the crate at point B?
  72. physics 1401

    a 15kg crate initially at rest slides down a ramp 2m long and inclined at an angle of 20 degrees with the horizontal. If there is no friction between the ramp surface and crate, what is the velocity of the crate at the bottom of the ramp?
  73. math

    A trucker hauls citrus fruit from Florida to Montreal. Each crate of oranges is 4 ft3 in volume and weighs 60 lb. Each crate of grapefruit has a volume of 6 ft3 and weighs 75 lb. His truck has a maximum capacity of 300 ft3 and can carry no more than 4200
  74. Math

    The ramp shown below is used to move crates of apples to loading docks at different heights. When the horizontal distance AB is 12 feet, the height of the loading dock, BC, is 6 feet. What is the height of the loading dock DE? 10 feet 12 feet 17 feet*** 18
  75. Physics

    A crate is initially at rest and then slides down a long inclin that is 30 degrees above the horizontal. If the coefficient of kinetic friction is 0.40, the speed of the crate after 5s is ?
  76. Math

    I cannot figure this one out. Please help. The ramp shown below is used to move crates of apples to loading docks at different heights. When the horizontal distance AB is 12 feet, the height of the loading dock, BC, is 6 feet. What is the height of the
  77. Physics

    1.A 24 kg crate initially at rest on a horizon floor requires a 75 N horizontal force to set it in motion, once the crate is in motion, a horizontal force 53 N keeps the crate moving with a constant velocity. Find the coefficient of kinetic friction,
  78. physics

    A crate with mass 32.5 kg initially at rest on a warehouse floor is acted on by a net horizontal force of 140 . How far does the crate travel in 10.0s? What is its speed at the end of 10.0s?
  79. physics

    Two crates connected by a rope lie on a horizontal surface. Crate A has mass 75 kilograms and B has mass 25kilograms. The coefficient of friction between each crate and the surface is 0.25. The crates are pulled to the right at a constant acceleration
  80. physics

    Two crates connected by a rope lie on a horizontal surface. Crate A has mass 15 kilograms and B has mass 15kilograms. The coefficient of friction between each crate and the surface is 0.24. The crates are pulled to the right at a constant acceleration
  81. university physics 2

    three crates are connected by a string and pulley system. The mass of the crate hanging on the left side of the table is 0.820 kg and the mass of the crate on the table is 1.78 kg. If the coefficient of kinetic friction between the table and the 1.78 kg
  82. maths

    Saki has 1865 apples. She packs them into crates. Each crate can hold 48 apples. Work out the largest number of crates that she can fill completely.
  83. Pre-algebra

    The ramp shown below is used to move crates of oranges to loading docks at different heights. When the horizontal distance AB is 15ft, the height of the loading dock, BC, is 3ft. What is the height of the loading dock DE? -5 -8 -9 -25 My answer: 5 Diagram:
  84. Physics 1

    A taut string connects a 5-kg crate to a 12-kg crate (see figure below). The coefficient of static friction between the smaller crate and the floor is 0.573; the coefficient of static friction between the larger crate and the floor is 0.443. Find the
  85. physics

    A 6.25-gram bullet travels at 365 m/s. It hits and enters a 4.50-kg crate. The crates slides 0.15m along a floor until it comes to rest. Find the friction force between the crate and the floor I used p=mv to get momentum and got 2.28125 N•s I calculated
  86. Physics

    A wooden crate sits on the floor of a flatbed truck that is initially at rest, and the coefficient of static friction between the crate and the floor of the truck is 0.25. The driver of the truck wants to accelerate to a velocity of 20 m/s within 4.0 s. If
  87. phy

    Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15.
  88. phy

    Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15.
  89. Algebra

    This is a repost from a few weeks ago from someone esle but need help. The ramp shown below is used to move crates of oranges to loading docks at different heights. When the horizontal distance AB is 15ft, the height of the loading dock, BC, is 3ft. What
  90. Diagram

    This is a repost from a few weeks ago from someone esle but need help. The ramp shown below is used to move crates of oranges to loading docks at different heights. When the horizontal distance AB is 15ft, the height of the loading dock, BC, is 3ft. What
  91. Math check

    michael has 79 dvds. He can store 15 dvds in a wooden crate. how many crates will he need 79÷15 = 5 but I get a remainder 4. Is it right to say he'll need 5 crates
  92. Maths

    A truck is loaded with two different types of crates. When 20 of crate A and 25 of crate B are loaded, the truck’s 8 tonne capacity is reached. When 2 of crate A and 16 of crate B are loaded, the same capacity is reached. Calculate the mass of each
  93. General Engineering

    A drag line is connected to an electric motor. Crates are hooked onto the line and dragged horizontally from one location within the factory to another across a series of rollers. There is 15° between the crate and motor and a force of 500N Each crate has
  94. physics

    An 80.9 kg astronaut is taking a space walk to work on the engines of his ship, which is drifting through space with a constant velocity. The astronaut, wishing to get a better view of the Universe, pushes against the ship and much later finds himself 30.3
  95. Physics

    A rope that is at 35° to the horizontal is used to pull 10kg crate across a rough floor. The crate is initially at rest and is dragged for a distance of 4.0m. The tension in the rope is 60N and the frictional force opposing the motion is 10N. A) Calculate
  96. physics

    Two packing crates of masses 7.88 kg and 4.62 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 4.62 kg crate lies on a smooth incline of angle 40.0°. a) Find the acceleration of the 4.62 kg crate
  97. physics

    Two wooden crates with masses are as shown are tied together by a horizontal cord. Another cord is tied to the first crate and it is pulled with a force of 199N at a angle of 20.0 degrees. Each crate has a coefficient of kinetic friction of 0.55 . Find the
  98. Physics

    A 31.0 kg crate, initially at rest, slides down a ramp 2.6 m long and inlined 14 degrees with the horizontal. Using the work-kinetic energy theorem and disregarding friction, find the velocity of th crate at the bottom of the ramp.
  99. Physics-Help Please!!!

    A 31.0 kg crate, initially at rest, slides down a ramp 2.6 m long and inlined 14 degrees with the horizontal. Using the work-kinetic energy theorem and disregarding friction, find the velocity of th crate at the bottom of the ramp
  100. Physics

    A 31.0 kg crate, initially at rest, slides down a ramp 2.6 m long and inlined 14 degrees with the horizontal. Using the work-kinetic energy theorem and disregarding friction, find the velocity of the crate at the bottom of the ramp

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