i mean forces acting on the rock
2007-11-29 00:59:10 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Physics
The reaction force is acting on the planet.
2007-11-29 01:03:40 · answer #1 · answered by Luigi 74 7 · 3⤊ 0⤋
Several of the other answers are incorrect. A 'reaction' force to an 'action' force is always a force acting on a different object and it's also a force exerted by the same mechanism.
If the action force is a gravity force then the reaction force must be a gravity force as well. If the action force is the earth's gravity acting on the rock, then the reaction force is the rock's gravity acting on the earth.
You've actually stated the problem in a self-contradictory way. There cannot be action and reaction forces both acting on the rock. One has to act on the rock and the other has to act on the thing that exerted the force on the rock.
2007-11-29 01:15:03 · answer #2 · answered by Steve H 5 · 2⤊ 0⤋
the reaction force during the fall is a frictional force due to air resistance, and during the collision, the reaction force is the earth pushing on the rock.
2007-11-29 02:16:56 · answer #3 · answered by brownian_dogma 4 · 0⤊ 0⤋
The earth pulls the rock down (action), and the rock pulls the earth up (reaction). But the earth is so much larger it wont move towards the rock it'll be the other way around.
2007-11-29 01:20:59 · answer #4 · answered by Brian 6 · 1⤊ 0⤋
the reaction on the gravity force on the earth is the falling on the rock.
2007-11-29 01:03:36 · answer #5 · answered by Scary Girl 6 · 1⤊ 1⤋
Forces acting are the weight and the air resistance(fluid friction) .
2007-11-29 01:04:31 · answer #6 · answered by Murtaza 6 · 0⤊ 3⤋
THE ACTION FORCE IS ITS WEIGHT=MG,THE REACTION FORCE IS AIR RESISTANCE.
2007-11-29 01:06:15 · answer #7 · answered by Anonymous · 0⤊ 3⤋
Air resistance and then the ground.
2007-11-29 01:03:44 · answer #8 · answered by Anonymous · 0⤊ 3⤋