Question

You drop an egg onto i) the floor and ii) a thick piece of foam rubber. In both cases the egg does not bounce. Which combination of statements about the egg drop is correct? A. The impulse is greatest with the floor, and average force is the same in both cases B. The impulse is the same in both cases, and the average force is greatest with the floor C. The impulse and the average force is the same in both cases D. The impulse is the greatest with the foam rubber, and the average force is the same in both cases

Answer 1

Impulse is defined as the change in momentum.

Since in both cases the egg has same initial velocity(before impact) and final velocity (=0) so the impulse in same for both cases.

Egg comes to rest faster on floor compared to foam

Avg Force = Impulse / T

Since Tfloor < Tfoam , So Avg Forcefloor > Avg ForceFoam . Thats why egg tends to break off the floor and not on foam

So option B is correct.

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