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A 1 kg cube of clay is flying through space at speed v0. It hits and...

A 1 kg cube of clay is flying through space at speed v0. It hits and sticks to a 7 kg piece of debris that was initially at rest.

(a) Find an expression for the speed of the debris after the collision in terms of v0.

(b) What fraction of the mechanical energy is lost to heat and deformation of the clay during the collision?

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