When a ball of mass 180 g is struck by a bat moving in the opposite direction,(adsbygoogle = window.adsbygoogle || []).push({});

the force acting on the ball is as shown in the graph (Figure 8.37). Determine

The final velocity of the ball if it was initially moving at

10.0 m s–1 south.

The graph depicted the Impulse as 10Ns (I checked the textbook and it was right)

However, when I calculated the final velocity, I got 65.55 and the answer in the textbook was 45.555

Ft = m(v-u)

10 = 0.180(v-10)

65.55 = v

Unless the Impulse is equation is Ft = m(u-v), i don't know how I got the answer wrong...

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# Homework Help: Impulse and Momentum Question

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