Question

A ball is dropped from a height of 10m. The ball is embedded in sand of 1m and stops.

a) The only momentum remains conserved.
b) Only kinetic energy remains conserved.
c) Both momentum and kinetic energy are conserved.
d) Neither K.E nor momentum is conserved.​

Answer 1

Answer:

A

Explanation:

The answer is a

A can be said true due to the law of conservation of momentum which states that during collision the total initial momentum equals the total final momentum.

However, the K.E cannot be conserved.

Before getting embedded in the sand, the K.E of the ball equals 1/2mv²

But as it embeds, the velocity is 0 so the K.E also is zero

Hope you understand!