A cricket ball of mass 150 g has an initial velocity (3i + 4j)ms-1 an – InterviewSolution

1.	A cricket ball of mass 150 g has an initial velocity (3i + 4j)ms-1 and a final velocity v = -(3i + 4j)ms-1 after being hit. The change in momentum (final momentum-initial momentum) is (in kg ms1)(a) zero(b) –(0.45i + 0.6j)(c) –(0.9i + 1.2j)(d) –5(i + j).
Answer» (c) –(0.9i + 1.2j)

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