A rock with a mass of 10 kg sits at the top of a hill 20 m high. What is the potential energy? PE= mghPE= hwKE= 1/2mv2

Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

How do we measure or think of speed in the united states?