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Types of Collision

A 4 kg sphere...

Question

A 4 kg sphere moving with velocity of 4 m/s collides with an identical sphere of 2 kg moving with 2 m/s as shown. Final kinetic energy is less than initial kinetic energy. What type of collision is this?

A

Elastic, one-dimensional

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B

Inelastic, one-dimensional

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C

Elastic, two-dimensional

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D

Inelastic, two-dimensional

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Solution

The correct option is D Inelastic, two-dimensional
The kinetic energy is not conserved. So inelastic collision.
The line joining the center if masses and the velocity vector are not equal. Hence two-dimension not collision.
Hence, the answer is Inelastic, two-dimensional.

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