Consider two different cases. In the first case, you jump from a second story ro

Question

Consider two different cases. In the first case, you jump from a second story roof and land in a pool, eventually floating to the surface and coming to rest. In the second case, you jump from a second story roof and land on a concrete patio, quickly coming to rest. The first case is more pleasant because,


1) The overall change in momentum is smaller when landing in the pool.
2) The impulse is smaller when landing in the pool.
3) None of the others
4) Less energy is lost when landing in the pool.
5) The overall change in velocity is smaller when landing in the pool.

Explanation / Answer

Impulse is defined as the product of Force and time      I = Ft in the second case body comes to rest in short duration of time. so it imparts more force than in the first case. Thus the first case is more pleasent. with in the given options non of then co incide with the above reasoning so the correct choice is (3)

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---