Question

Q) A circket ball of mass 0.1 kg is moving horizontally with a speed of 30 m/s. It strikes a vertical wall and rebounds with a speed of 20 m/s in the opposite direction. The change in momentum of the ball is in kgm/s.
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Answer 1

Answer:

5

Explanation:

∆p=30*0.1-(-20*0.1)

=3-(-2)

=3+2=5