Question

On a frictionless surface, a block of mass M moving at speed v collides elastically with another block of same mass M which is initially at rest. After collision the first block moves at an angle θ to its initial direction and has a speed v3. The second block‘s speed after the collision is :

Answer 1

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Answer 2

The answer to the question: On a frictionless surface, a block of mass M moving at speed v collides elastically with another block of same mass M which is initially at rest.

After collision the first block moves at an angle θ to its initial direction and has a speed v3. The second block‘s speed after the collision is : 2√2/3v