The ballistic pendulum (see the figure below) is a device used to measure the speed of a fast-moving projectile such as a bullet. The bullet is fired into a large block of wood suspended from some light wires. The bullet Is stopped by the block, and the entire system swings up to a height h. m, + mg al (a) Determine the ratio of the momentum immediately after the collislon to the momentum immediately before the collision. Pr %3D Pi (b) Show that the ratio of the kinetic energy immediately after the collision to the kinetic energy immediately before the collision ism,/(m, + m,). (Submit a file with a maximum size of 1 MB.) OCharbs D. Winters/Congago Loaraing

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