A 158 gram baseball is hit toward the left by a bat. The magnitude of the force

Question

A 158 gram baseball is hit toward the left by a bat. The magnitude of the force the bat exerts on the ball as a function of time is shown in the figure below

Part A

Find the magnitude of the impulse that the bat imparts to the ball.

p = ? kg x m/s

Part B

Find the magnitude of the ball's velocity just after it is hit by the bat if the ball is initially at rest.

v = ? m/s

Part C

Find the magnitude of the ball's velocity just after it is hit by the bat if the ball is initially moving to the right at 32.0m/s .

v = ? m/s

A 158 gram baseball is hit toward the left by a bat. The magnitude of the force the bat exerts on the ball as a function of time is shown in the figure below Find the magnitude of the impulse that the bat imparts to the ball. P = ? kg x m/s Find the magnitude of the ball's velocity just after it is hit by the bat if the ball is initially at rest. v= ? m/s Find the magnitude of the ball's velocity just after it is hit by the bat if the ball is initially moving to the right at 32.0m/s. v= ? m/s

Explanation / Answer

(a)impulse = F*(delta T) = 4KN*(5-2)ms =12 Ns =12 kgm/s

(b)impulse = (change in momentum) =m(v-0)

12=.158(v)

v= 75.94 m/s

(c)v= 75.94 - 13 =62.94 m/s

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