An object of mass 5 kg, moving with a velocity of 5 ms⁻¹, is hit by a force, such that it moves back along the same path with a velocity of 20 ms⁻¹. Find the change in momentum produced by the force.
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Answer:
1st momentum=5x5=25 kgm/s
2nd momentum =20x5=100kgm/s
change in momentum=(100-25)kgm/s=75 kgm/s
Explanation:
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