Question

question 11 1 pt which produces more force: driving into a very massive concrete wall with no \give,\ or having a head - on collision with an identical car moving toward you at the same speed? wall both the same car need more information question 12 1 pts a softer landing occurs when an falling object bounces from a surface quickly. in a extended time. either of these neither of these

Explanation:

Question 11

According to Newton's laws and the concept of impulse - momentum theorem, in both cases (hitting the wall and head - on collision with an identical car), the change in momentum of your car is the same. Since force is related to the rate of change of momentum and the time of interaction is similar in idealized cases, the forces are the same.

The impulse - momentum theorem states that impulse $J = F\Delta t=\Delta p$. A softer landing means a smaller force. For a given change in momentum $\Delta p$, if the time of interaction $\Delta t$ is extended, the force $F$ is reduced.

Answer:

B. both the same

Question 12