A 47-g object moving to the right at 18 cms makes an, Ask an Expert

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A 4.7-g object moving to the right at 18 cm/s makes an elastic head-on collision with a 9.4-g object that is initially at rest.

a.) What is the velocity of the 4.7-g mass after the collision?

b.) What fraction of the initial kinetic energy was transferred to the 9.4-g block?

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