ch09-p036 - 36. From Fig. 9-55, +y corresponds to the...

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36. From Fig. 9-55, + y corresponds to the direction of the rebound (directly away from the wall) and + x towards the right. Using unit-vector notation, the ball’s initial and final velocities are ˆˆ ˆ ˆ cos i sin j 5.2 i 3.0 j ˆ ˆ cos i sin j 5.2 i 3.0 j i f vv v v θθ =−= =+ = + G G respectively (with SI units understood). (a) With m = 0.30 kg, the impulse-momentum theorem (Eq. 9-31) yields () 2 0.30 kg (3.0 m/s j)
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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