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Momentum

A ball is dro...

Question

A ball is dropped from a height of 15m and gets embedded in sand 1m and stops. Then, 1. Only momentum is conserved 2. Only kinetic energy is conserved 3. Both momentum and kinetic energy are conserved 4. Neither momentum nor kinetic energy is conserved

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Q. State whether the given statement is True or False :

Momentum is conserved in all collisions but kinetic energy is conserved in elastic collisions only.

Q. State whether the given statement is True or False :

Neither momentum nor kinetic energy is conserved in elastic collisions.

Q. State whether the given statement is True or False :

Both momentum and kinetic energy are conserved in all collisions.

Q. A block moving in air breaks in two parts and the parts separate
(a) the total momentum must be conserved
(b) the total kinetic energy must be conserved
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Q. The total kinetic energy in an elastic collision is conserved even during the collision
Total linear momentum is conserved in an elastic collision.

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