block with mass m = 12.0kg sits at the top of a ramp with height y1=8.5m. The ramp makes an angle θ = 25.0◦ with the horizontal. As the block slides down the ramp friction takes 235J of work out of the block by the time it reaches the bottom of the ramp. Once at the bottom of the ramp, the block slides to a stop (due to friction) on the level ground at a distance of d =7.8m from the bottom of the ramp. a) What is the velocity (vb) of the block when it reaches the bottom
A block with mass m = 12.0kg sits at the top of a ramp with height y1=8.5m. The ramp makes an angle θ = 25.0◦ with the horizontal. As the block slides down the ramp friction takes 235J of work out of the block by the time it reaches the bottom of the ramp. Once at the bottom of the ramp, the block
slides to a stop (due to friction) on the level ground at a distance of d =7.8m from the bottom of the ramp.
a) What is the velocity (vb) of the block when it reaches the bottom of the ramp?
b) What is the work done by friction (W'f) on the block between the time the block reaches the bottom of the ramp, and when it stops sliding?
c) What is the coefficient of kinetic friction μk between the ground and the block?
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