According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail to push it into a piece of wood, the nail (1 point)
1. creates a friction with the hammer.
2. exerts an equal force on the wood.
3. exerts an equal and opposite force on the hammer.
4. moves at a constant speed. <--- (picked 4)
3. exerts an equal and opposite force on the hammer.
Just remember that a force always has an equal and opposite force opposing it. If I sit on a chair the chair (and floor) must push back with the same force I exert during sitting. When I was a student in physics class I asked "but how can that be?" and the prof answered. If the chair didn't push back you would fall on the floor. What about standing? Do you think the earth pushes back on your feet? Then stand in quicksand and see what happens when it doesn't push back.
According to Newton's third law of motion, when a hammer strikes and exerts force on a nail to push it into a piece of wood, the correct answer is option 3. The nail exerts an equal and opposite force on the hammer. This means that for every action, there is an equal and opposite reaction. So, while the hammer pushes the nail into the wood, the nail also pushes back on the hammer with the same amount of force.
The correct answer is 3. The nail exerts an equal and opposite force on the hammer.
We can arrive at this answer by understanding Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. In this scenario, the action is the force exerted by the hammer on the nail, which pushes the nail into the wood. As per Newton's third law, the reaction to this action is that the nail exerts an equal and opposite force on the hammer.
So, when the hammer strikes the nail, the force exerted by the hammer on the nail is met with an equal force in the opposite direction from the nail onto the hammer. This force pair enables the hammer to drive the nail into the wood.