Aman standing on a bus remains still when the bus is at rest. when the bus moves forward and then
slows down the man continues moving forward at the original speed. this is an example of the effect of
a. velocity.
b. inertia.
c. gravity.
d. weight.

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.