A sled of mass m is being pulled horizontally by a constant horizontal force of

Question

A sled of mass m is being pulled horizontally by a constant horizontal force of magnitude F. The coefficient of kinetic friction is uk . During the time interval delta t=t , the sled moves a distance s, starting from rest.

Find the work W done by the force F.
Express your answer in terms of the given quantities and, if necessary, appropriate constants. You may or may not use all of the given quantities (F,m , uk, t, s).

A sled is being pulled along a horizontal surface by a horizontal force of magnitude 600N . Starting from rest, the sled speeds up with acceleration 0.08m/s^2 for 1 minute.

Find the average power created by the force .

Find the instantaneous power created by the force at t=10s .

Explanation / Answer

Average velocity is just distance divided by time. They gave you more information than you need. Vavg=s/t.

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