A-Rod hits a baseball with a speed of 35 m/s at an angle of 55 degrees from the

Question

A-Rod hits a baseball with a speed of 35 m/s at an angle of 55 degrees from the horizontal. Assuming that the ball is caught by a fielder at the same height that it left the bat, how far did the ball travel? Answer = m (so you don't have to include units in your answer - also, round to closest meter) When a baseball player swings at a ball, the angular velocity of the bat is zero at the start of the swing and 30 rad/s at ball contact. If the swing lasts 0.30 s, what is the average angular acceleration of the club during the swing? 10 rad/s2 30 rad/s2 60 rad/s2 100 rad/s2 During a golf drive, the angular velocity of the driver is 1150 deg/s just before impact with the golf ball. If the distance from the club head to the axis of rotation is 2.0 m, what is the linear velocity of the club head? 20 m/s 550 m/s 1100 m/s 2300 m/s

Explanation / Answer

1. R=(35x35x sin110)/g =117.34 m 2.Angular acceleration= 30/0.30 =100rad/s^2

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