The surface of the preceding problem is modified so that the coefficient of kinetic friction is decreased. The same horizontal force is applied to the crate, and after being pushed 8.0 m, its speed is 5.0 m/s. How much work is now done by the force of friction? Assume that the crate starts at rest.

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The surface of the preceding problem is modified
so that the coefficient of kinetic friction is
decreased. The same horizontal force is applied
to the crate, and after being pushed 8.0 m, its
speed is 5.0 m/s. How much work is now done by
the force of friction? Assume that the crate starts
at rest.
Transcribed Image Text:The surface of the preceding problem is modified so that the coefficient of kinetic friction is decreased. The same horizontal force is applied to the crate, and after being pushed 8.0 m, its speed is 5.0 m/s. How much work is now done by the force of friction? Assume that the crate starts at rest.
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