A bullet travelling horizontally at enters a stationary wooden block resting on a…

PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

A 0.020 kg0.020\,\text{kg} bullet travelling horizontally at 300 m s−1300\,\text{m\,s}^{-1} enters a stationary 1.0 kg1.0\,\text{kg} wooden block resting on a smooth horizontal surface. The bullet emerges from the opposite face of the block with a speed of 50 m s−150\,\text{m\,s}^{-1} in the direction opposite to its initial motion. (i) Calculate the speed of the block immediately after the bullet emerges. (ii) Using the given data, determine the coefficient of restitution for the bullet–block collision.

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