Question

Newton's third law. List the action force and reaction force for each example.

ex. A bullet is fired from a gun by the expanding gases

action force: expanding gases pushing on the bullet

reaction force: bullet pushing back on the expanding gases

1. A volleyball is served.

2. A firewoman opens the fire hose, and water sprays forward

3. A sprinter's shoe hit the ground

4. The moon orbits Earth

Answer 1

1. Action Force: Player hit the ball forward direction

Reaction Force: Ball hit Player's hand backward direction.

2. Action Force: When a firewome turns on a hose, water comes out of the nozzle in one direction

Reaction Force: the hose moves back in the opposite direction

3 Action Force: As Sprinter hit th groun, he try to push back the track backward direction

Reaction Force: the ground exerts an equal and opposite force on the Sprinters, so push them into forward direction

4. Action Force: is the force exerted by the moon on earth
Reaction Force: is the force exerted by the earth on the moon