A steel ball of mass 0.1 kg moving with a speed of 10m/s collides with an identical steel ball at rest. After the collision the direction of each ball makes an angle of 300 with the orginal direction. Calculate the speed of each ball after the collsion. Is this collision is elastic?
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100 gms = 0.1 kg Momentum of the ball while travelling towards the wall = mv = 0.1 * 10 ... Note the minus sign for the opposite direction. ... Velocity of the ball before collision=10 m/s.
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