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Physics, 31.08.2021 15:10 katiebotts18

a 60g tennis ball travelling at 30m/s hi a wall and bounce back at 20m/s. calculate (a)momentum of the ball before impact (b)momentum of the ball after impact​

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a 60g tennis ball travelling at 30m/s hi a wall and bounce back at 20m/s. calculate (a)momentum of t...
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