Consider the popgun in Example 8.3. Suppose the projectile mass, compression dis

Question

Consider the popgun in Example 8.3. Suppose the projectile mass, compression distance, and spring constant remain the same as given or calculated in the example. Suppose, however, there is a friction force of magnitude 2.00 N acting on the projectile as it rubs against the interior of the barrel. The vertical length from point  to the end of the barrel is 0.600 m. (a) After the spring is compressed and the popgun fired, to what height does the projectile rise above point ? Serway and Jewett 8th edition Physics for scientists and engineers. Need help please

Explanation / Answer

Try using the conservation of energy. The energy the popgun+bullet has at the start must equal the final energy of the popgun+bullet system, minus the energy lost by friction (which would just be W=Fd).

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