MarisaVargas
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- Dec 8, 2010
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...below. The ball is initially traveling? A baseball player hits a baseball (m = 0.149 kg) as shown in the figure below. The ball is initially traveling horizontally with speed of 36 m/s. The batter hits a fly ball as shown, with a speed vf = 52 m/s.
(a) What is the magnitude and direction of the impulse imparted to the ball?
magnitude 1Your answer is incorrect.12.1 kg · m/s
direction 2Your answer is incorrect.26.8° counterclockwise from the +x-axis
(b) If the ball (m = 0.149 kg) and bat are in contact for a time of 8.2 ms, what is the magnitude of the average force of the bat on the ball?
3 N
Compare this answer to the weight of the ball.
The contact force is 4 times the ball's weight.
(c) What is the impulse imparted to the bat?
magnitude 5 kg · m/s
direction 6° counterclockwise from the +x-axis
(a) What is the magnitude and direction of the impulse imparted to the ball?
magnitude 1Your answer is incorrect.12.1 kg · m/s
direction 2Your answer is incorrect.26.8° counterclockwise from the +x-axis
(b) If the ball (m = 0.149 kg) and bat are in contact for a time of 8.2 ms, what is the magnitude of the average force of the bat on the ball?
3 N
Compare this answer to the weight of the ball.
The contact force is 4 times the ball's weight.
(c) What is the impulse imparted to the bat?
magnitude 5 kg · m/s
direction 6° counterclockwise from the +x-axis