Putty is stationary on a friction less surface

Reference no: EM13659260

A 13 g projectile traveling 152 m/s penetrates into a 0.25-kg wad of putty and emerges plainly at28 m/s.

1. If the putty is stationary on a frictionless surface when hit, how fast does it move after the projectile emerges?

2. How much kinetic energy was lost in this process?

Reference no: EM13659260

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