A 17-kg cannonball is fired with a velocity of 18 m/s from 27 m above the ground. It hits a target that is 14 m above the ground. With what velocity does it hit, in m/s?

Describe the path of the electric current through a circuit?

For which pair of objects would adding the same a

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.