PHY 303K Study Guide - Midterm Guide: Point Particle, Particle System, Stationary Point
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Multiple-choice questions may continue on the next column or page nd all choices before answering. From the setup, the nal velocity of the col- lision is the initial velocity of the subsequent swing. During the swinging process the total energy is conserved. A student performs a ballistic pendulum experiment using an apparatus similar to that shown in the gure. Initially the bullet is red at the block while the block is at rest (at its lowest swing point). After the bullet hits the block, the block rises to its highest position, see dashed block in the. The following data is obtained: the maximum height the pendulum rises is. 4. 7 cm, the mass of the bullet is 79 g, and the mass of the pendulum bob is 945 kg. Find the nal velocity of the system (m1 + m2) immediately after the collision and before the pendulum starts to swing upward. The acceleration of gravity is 9. 8 m/s2 .
