Starting from rest, a 4.20-kg block slides 2.30 m down a rough 30.0° incline. The coefficient...

Starting from rest, a 4.20-kg block slides 2.30 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is μ_k = 0.436.

(a) Determine the work done by the force of gravity.
J

(b) Determine the work done by the friction force between block and incline.
J

(c) Determine the work done by the normal force.
J

(d) Qualitatively, how would the answers change if a shorter ramp at a steeper angle were used to span the same vertical height?

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genius_generous answered 6 months ago

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