Question

A pitched 200 g baseball, in the horizontal flight with a speed of 120 km/h, is...

A pitched 200 g baseball, in the horizontal flight with a speed of 120 km/h, is struck by a bat. After leaving the bat, the ball travels in the opposite direction at an upward angle of 60.00 with 80 % of the original speed.
(a) What impulse (magnitude and direction) acts on the ball while it is in contact with the bat during the collision?

(b) The impact time for the baseball-bat collision is 1.50 ms. What is the magnitude of the average net force acting on the baseball?

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Answer #1

Refer the figure above, the change in the momentum (magnitude and direction) of the ball will be impulse (magnitude and direction) on the ball imparted by baseball-bat

The initial velocity in vector form,

The final velocity is the 80% of the initial velocity and at an angle 60 degrees from horizontal, given by:

(a) Now for mass, m=200 g= 0.2 kg , the impulse is:

(b) Time of force action is,

The relation between impulse and force is:

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