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10) A 41.0 kg box initially at rest is pushed 4.20 m along arough, horizontal floor with a constant applied horizontal force of135 N. If the coefficient of friction between box and floor is0.300, find the following.
(a) the work done by the applied force
J
(b) the increase in internal energy in the box-floor system dueto friction
J
(c) the work done by the normal force
J
(d) the work done by the gravitational force
J
(e) the change in kinetic energy of the box
J
(f) the final speed of the box
m/s
6) An inclined plane of angle θ = 20.0° has a spring offorce constant k = 505
OR
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