Question

If you pick a rock up off the ground, what is the reaction force?

A. the normal force
B. your hand pushing up on the rock
C. the rock pressing down on your hand
D. friction between the rock and your hand

Answer 1

I think the answer is (C The rock pressing down on your hand)

Or, (D Friction between the rock and your hand)

Hope helps!-Aparri

Answer 2

the answer is D JUST TOOK TEST ON TIME4LEARNING