During a neighborhood baseball game in a vacant lot, a particularly wild hit sen

Question

During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.145-kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 15.7 m/s, shatters the glass as it passes through, and leaves the window at 11.1 m/s with no changef direction. What is the direction of the impulse that the glass imparts to the baseball? The direction of the O ball's motion Opposite the direction of the ball's motion Neither of these Calculate the magnitude of this impulse (a positive number) Number N s The ball is in contact with the glass for 0.0109 s as it passes through. Find the magnitude of the average force of the glass on the ball (a positive number) Number

Explanation / Answer

Impulse = change in momentum

= m (vf - vi)

= 0.145 (11.1 - 15.7)

= -0.667 N s

Ans : 0.667 N s

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Impulse = F t

0.667 = F (0.0109)

F = 61.2 N

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