Work Energy And Power Question 76

Question: Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the struck particle move in directions making angles θ1 and θ2 respectively with the initial direction of motion. The sum of the angles. θ1+θ2, is [UPSEAT 2004]

Options:

A) 45

B) 90

C) 135

D) 180

Show Answer

Answer:

Correct Answer: B

Solution:

If the masses are equal and target is at rest and after collision both masses moves in different direction. Then angle between direction of velocity will be 90 , if collision is elastic.



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