If Justin is traveling 6 km north in 1 hour in his car, what is his average velocity in Sl units? Velocity = change in distance/change in time (vector: change in magnitude and direction)

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

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