Sarting from rest a 52-kg blockslides 240 m down a rough , Physics

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Sarting from rest a 52-kg blockslides 240 m down a rough

Starting from rest, a 5.2-kg blockslides 2.40 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.
b) Determine the work done by the friction force between block and incline.
c) Determine the work done by the normal force.
d) Qualitatively, how would the answers change if a shorter rampat steeper angle were used to span the same vertical height?

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