Physics, 31.08.2021 15:10 jilliynr9507
a 60g tennis ball travelling at 30m/s hit a wall and bounce back at 20m/s. calculate (a)the momentum of the ball before impact (b)the momentum after impact
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a 60g tennis ball travelling at 30m/s hit a wall and bounce back at 20m/s. calculate (a)the momentum...
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