Arock is thrown up at the edge of a cliff that is 32m high. if it was thrown at 40m/s, how long does it take to hit the ground below the cliff? what is it height above the ground at 10 seconds?

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

c) up is the direction the magnetic force is acting on the charge.

490 n

f=125n a=2.5m/s2