Question

The toy gun in the figure below consists of a spring with spring constant k. It is loaded with a projectile of mass m and the spring is compressed of a distance d. The toy gun is fired horizontally and the bullet travels a total distance of L within the toy gun before it is released.

A) Neglecting all resistive forces, determine the speed of the projectile v0 once it exits the toy gun (i.e, express v0 in terms of the known quantities k, m, L, d)

B) Suppose now that there is a an avergae friction force of magnitude f that acts on the projectile as it travels through the toy gun. If the final velocity of the projectile is v1, calculate f (i.e, find an expression for f in terms of k, m, L, d, and v1)

Answer 1