Test Academy | A cricket ball of mass 150 g has an initial velocity u = (3î + 4ĵ) m s⁻¹ and a final velocity v = -(3î + 4ĵ ) m s⁻¹ after being hit. The change in momentum (final momentum-initial momentum) is (in kg m s⁻¹) zero, -(0.45î + 0.6ĵ), -(0.9î + 1.2ĵ), -5(î + ĵ)

Question

A cricket ball of mass 150 g has an initial velocity u = (3î + 4ĵ) m s⁻¹ and a final velocity v = -(3î + 4ĵ ) m s⁻¹ after being hit. The change in momentum (final momentum-initial momentum) is (in kg m s⁻¹)

Options :

zero
-(0.45î + 0.6ĵ)
-(0.9î + 1.2ĵ)
-5(î + ĵ)

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