3. A 140g baseball is struck by a baseball bat when the baseball is moving horizontally at 35m/s. After the ball hits the bat, it is moving at 45m/s, 30° above the horizontal. The baseball was in contact with the bat for 5ms. a) What is the change in kinetic energy AEK = Ekf - Eki during this collision? 30° 35m/s 45m/s b) What is the average power provided by the bat to the ball during this collision?
3. A 140g baseball is struck by a baseball bat when the baseball is moving horizontally at 35m/s. After the ball hits the bat, it is moving at 45m/s, 30° above the horizontal. The baseball was in contact with the bat for 5ms. a) What is the change in kinetic energy AEK = Ekf - Eki during this collision? 30° 35m/s 45m/s b) What is the average power provided by the bat to the ball during this collision?
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Transcribed Image Text:3. A 140g baseball is struck by a baseball bat when the
baseball is moving horizontally at 35m/s. After the
ball hits the bat, it is moving at 45m/s, 30° above the
horizontal. The baseball was in contact with the bat
for 5ms.
a) What is the change in kinetic energy
AEK = Ekf Eki during this collision?
—
45m/s
30°
35m/s
b) What is the average power provided by the bat to the ball during this collision?
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