A person is sledding down a hill. The combined mass of the p…

A person is sledding down a hill. The combined mass of the person and sled is [m] kg. The hill is [h] m high with a [d] m long slope. There is a [F] N drag force due to air resistance. If the person and sled are moving at [v] m/s at the bottom of the hill, what was their initial velocity at the top of the hill?

A person uses a [F] N force to pull a child in a wagon up a…

A person uses a [F] N force to pull a child in a wagon up a hill. The combined mass of the child and wagon is [m] kg. The hill is [h] m high vertically and [d] m long along the slope. If the child and wagon are moving at [v] m/s at the top of the hill, how fast were they moving initially before climbing the hill?