a ball dropped from rest falls freely until it hits the ground with a speed of 25 m/s. the time during which the ball is in free fall is approximately?

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.