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A 0.1 kg bouncy ball moves toward a brick wall with a speed of 11 m/s. After colliding with the wall, the ball travels at a speed of 8.8 m/s in the OPPOSITE DIRECTION. What is the magnitude of the impulse
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A 0.1 kg bouncy ball moves toward a brick wall with a speed of 11 m/s. After colliding with the wall, the ball travels at a speed of 8.8 m/s in the OPPOSITE DIRECTION. What is the magnitude of the impulse experience by the ball?

User Anuragh KP
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1 Answer

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Impulse is change in momentum. The initial momentum was
0.1kg*11m/s=1.1kg m/s.
The second momentum is 0.1*(-8.8m/s)=-0.88 (since it's moving backward now)
The difference is P1-P2 = 1.1-(-0.88)=1.98kg m/s
User Jassica
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