1. A billiard ball of mass mA = 0.4 kg moving with a speed vA = 2 m/s strikes a second ball, initially at rest, of mass mB = 0.4 kg. As a result of the collision, the first ball is deflected off at an angle of 30.0o with a speed v’A = 1.2 m/s. Taking the xaxis to be the original direction of motion of ball A, and assuming it deflects above the xaxis, find the final velocity of ball B (which will include both a magnitude as well as a direction).

Question

1. A billiard ball of mass mA = 0.4 kg moving with a speed vA = 2 m/s strikes a second ball, initially at rest, of mass mB = 0.4 kg. As a result of the collision, the first ball is deflected off at an angle of 30.0o with a speed v’A = 1.2 m/s. Taking the x­axis to be the original direction of motion of ball A, and assuming it deflects above the x­axis, find the final velocity of ball B (which will include both a magnitude as well as a direction).

Paul · Answer

1. A billiard ball of mass mA = 0.4 kg moving with a speed vA = 2 m/s strikes a second ball, initially at rest, of mass mB = 0.4 kg. As a result of the collision, the first ball is deflected off at an angle of 30.0o with a speed v’A = 1.2 m/s. Taking the x­axis to be the original direction of motion of ball A, and assuming it deflects above the x­axis, find the final velocity of ball B (which will include both a magnitude as well as a direction).