PRACTICE IT Use the worked example above to help you solve this problem. The ballistic pendulum (Figure a) 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. It is possible to obtain the initial speed of the bullet by measuring h and the two masses. As an example of the technique, assume that the mass of the bullet, m₁, is 5.35 g, the mass of the pendulum, m2, is 1.097 kg, and h is 4.54 cm. (a) Find the velocity of the system after the bullet embeds in the block. m/s (b) Calculate the initial speed of the bullet. m/s EXERCISE HINTS: GETTING STARTED I'M STUCK! A bullet with mass 5.06 g is fired horizontally into a 1.981-kg block attached to a horizontal spring. The spring has a constant 5.84 x 10² N/m and reaches a maximum compression of 6.19 cm. (a) Find the initial speed of the bullet-block system. m/s (b) Find the speed of the bullet. m/s
PRACTICE IT Use the worked example above to help you solve this problem. The ballistic pendulum (Figure a) 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. It is possible to obtain the initial speed of the bullet by measuring h and the two masses. As an example of the technique, assume that the mass of the bullet, m₁, is 5.35 g, the mass of the pendulum, m2, is 1.097 kg, and h is 4.54 cm. (a) Find the velocity of the system after the bullet embeds in the block. m/s (b) Calculate the initial speed of the bullet. m/s EXERCISE HINTS: GETTING STARTED I'M STUCK! A bullet with mass 5.06 g is fired horizontally into a 1.981-kg block attached to a horizontal spring. The spring has a constant 5.84 x 10² N/m and reaches a maximum compression of 6.19 cm. (a) Find the initial speed of the bullet-block system. m/s (b) Find the speed of the bullet. m/s
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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