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A soccer ball is travelling at a velocit...

A soccer ball is travelling at a velocity `20 ms^-1` due south. At the end of its travel, it moves with a velocity `2 ms^-1` due south. If the change in the linear momentum of the ball is `18 kg ms^-1` due north, then the mass of the ball is

A

3.0 kg

B

0.81 kg

C

1.0 kg

D

0.5 kg

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