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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A smooth ball A travels towards another identical ball B with a velocity u. Ball B is at rest and the impact parameter d is equal to 3–√R where R is radius of each ball. Due to impact the direction of motion of ball A changes by 30∘. Find the velocity of B after the impact. It is given that collision is elastic

A smooth ball A travels towards another identical ball B with a velocity u. Ball B is at rest and the impact parameter d is equal to 3–√R where R is radius of each ball. Due to impact the direction of motion of ball A changes by 30∘. Find the velocity of B after the impact. It is given that collision is elastic

A mass m1 with initial speed v0 in the positive x - direction collides with a mass m2 = 2 m1 which is initially at rest at the origin as shown in figure. After the collision m1 mooves off with speed v1 = v0 /2 in the negative y - direction and m2 moves off with speed v2 at angle theta.