A worker pushed a 40.0-kg block 13.0 m along a level floor at a constant speed...
A worker pushed a 40.0-kg block 13.0 m along a level floor at a constant speed with a force directed 33.0° below the horizontal. If the coefficient of kinetic friction is 0.20, how much work did the worker do on the block?
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A worker pushed a 40.0-kg block 13.0 m along a
level floor at a constant speed...
A factory worker pushes a 29.3 kg crate a distance of 4.1 m along a level...
A factory worker pushes a 29.3 kg crate a distance of 4.1 m along a level floor at constant velocity by pushing downward at an angle of 28 ∘ below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. 1) What magnitude of force must the worker apply to move the crate at constant velocity? 2) How much work is done on the crate by this force when the crate is pushed a distance of...
A factory worker pushes a 28.1 kg crate a distance of 4.1 m along a level...
A factory worker pushes a 28.1 kg crate a distance of 4.1 m along a level floor at constant velocity by pushing downward at an angle of 31 ∘ below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.26. Part A: What magnitude of force must the worker apply to move the crate at constant velocity? Part B: How much work is done on the crate by this force when the crate is pushed a...
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A 2.74 kg block is pushed 1.41 m up a vertical wall with a
constant speed by a constant force of magnitude F applied at an
angle of 66.3 with the horizontal. The acceleration of gravity is
9.8 m/s2. If the coefficient of kinetic friction between the block
and wall 0.415, find the work done by F.
A 2.74 kg block is pushed 1.41 m up a vertical wall with a constant speed by a constant force of magnitude F...
A factory worker pushes a 30.0 kg crate a distance of 4.5 m along a level...
A factory worker pushes a 30.0 kg crate a distance of 4.5 m along a level floor at constant velocity by pushing downward at an angle of 30° below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. Part A What magnitude of force must the worker apply to move the crate at constant velocity? Part B How much work is done on the crate by this force when the crate is pushed a distance of 4.5 m? Part C How...
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A 1,380-N crate is being pushed across a level floor at a constant speed by a...
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A 1,060-N crate is being pushed across a level floor at a constant speed by a...
A 1,060-N crate is being pushed across a level floor at a
constant speed by a force
F
of 200 N at an angle of 20.0° below the horizontal, as shown in
the figure a below.
(a) What is the coefficient of kinetic friction between the
crate and the floor? (Enter your answer to at least three decimal
places.)
(b) If the 200-N force is instead pulling the block at an angle of
20.0° above the horizontal, as shown in...
A 1,460-N crate is being pushed across a level floor at a constant speed by a...
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(a) What is the coefficient of kinetic friction between the
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(b) If the 200-N force is instead pulling the block at an angle of
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