When you jump up, you exert an action force on the ground. What's the reaction force? A. your weight B. Earth's gravity C. the ground pushing on you D. your body moving upward

Answer-

a-your weight

Explanation:

Due to Newton's third law of motion when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

v=ir = 3x15 =45 v