Newton’s 3 rd Law. For every force there is an equal and opposite force. Identify at least six pairs of action-reaction force pairs in the following diagram.
Newton’s 3rd Law
For every force there is an equal and opposite force
Rockets are unable to accelerate in space because ...a. there is no air in space for the rockets to push off of. b. there is no gravity in space.c. there is no air resistance in space.d. ... nonsense! Rockets do accelerate in space.
It is a common misconception that rockets are unable to accelerate in space. The fact is that rockets do accelerate. Rockets are able to accelerate due to the fact that they burn fuel and push the exhaust gases in a direction opposite the direction which they wish to accelerate
While driving down the road, an unfortunate bug strikes the windshield of a bus. Quite obviously, this is a case of Newton's third law of motion. The bug hit the bus and the bus hit the bug. Which of the two forces is greater: the force on the bug or the force on the bus?
Trick Question! Each force is the same size. For every action, there is an equal ... (equal!). The fact that the bug splatters only means that with its smaller mass, it is less able to withstand the larger acceleration resulting from the interaction.
A gun recoils when it is fired. The recoil is the result of action-reaction force pairs. As the gases from the gunpowder explosion expand, the gun pushes the bullet forwards and the bullet pushes the gun backwards. The acceleration of the recoiling gun is ...a. greater than the acceleration of the bullet. b. smaller than the acceleration of the bullet.c. the same size as the acceleration of the bullet
The force on the gun equals the force on the bullet. Yet, acceleration depends on both force and mass. The bullet has a greater acceleration due to the fact that it has a smaller mass. Remember: acceleration and mass are inversely proportional
If a Mack truck and a Volkswagen have a head-on collision, which vehicle will experience the greater impact force?a) the Mack truckb) the Volkswagenc) both the samed) ... it depends on other factors
Does the scale read 100N, 200N, or zero?
For every force there exists an equal and opposite force. Consider action and reaction forces in the case of a rock falling under the influence of gravity. If action is considered to be that of the earth pulling down on the rock, can you clearly identify the reaction force?