SITUATION 7: A factory worker pushes a 30-kg crate a distance of 4.5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and the floor is 0.25. Determine: The magnitude of force the worker must apply 30 N O 73.575 N O 7.5 N 294.3 N

Physics for Scientists and Engineers: Foundations and Connections
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Author:Katz, Debora M.
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Chapter5: Newton's Laws Of Motion
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Problem 23PQ: The x and y coordinates of a 4.00-kg particle moving in the xy plane under the influence of a net...
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SITUATION 7: A factory worker pushes a 30-kg crate a distance of 4.5m along a level floor at constant
velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and the floor is
0.25. Determine:
The magnitude of force the
worker must apply
O 30 N
O 73.575 N
O 7.5 N
O 294.3 N
Transcribed Image Text:SITUATION 7: A factory worker pushes a 30-kg crate a distance of 4.5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and the floor is 0.25. Determine: The magnitude of force the worker must apply O 30 N O 73.575 N O 7.5 N O 294.3 N
How much work is done on the
crate by this force?
O 135.
135 J
331.088 J
O 33.75 J
O 1324.35 J
How much work is done on the
crate by gravity?
O None
O 73.575 J
331.088 J
O 1324.35 J
Transcribed Image Text:How much work is done on the crate by this force? O 135. 135 J 331.088 J O 33.75 J O 1324.35 J How much work is done on the crate by gravity? O None O 73.575 J 331.088 J O 1324.35 J
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