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Problem $13\mathrm{.}155-$ Direct central impact DEPENDENT MULTI$-$PART PROBLEM $-$ ASSIGN ALL PARTS

NOTE: This is a multi$-$part question. Once an answer is submitted, you will be unable to return to this part. Two steel blocks slide without friction on a horizontal surface. Their velocities before the impact are shown.

Problem $13\mathrm{.}155.$b Direct central impact $-$loss of energy

Knowing that $e=0\mathrm{.}72,$ determine the energy loss during impact.

The energy loss during the impact is $3\mathrm{.}3048$