PHYSICS 8A Study Guide - Midterm Guide: Circular Motion, Moment Of Inertia, Headon
Document Summary
In the absence of any information about the size of the objects, treat them as point masses. Assume that air resistance is negligible, and consider that the acceleration of gravity has magnitude g at the surface of the earth. Remember that you need to show your work in order to get full credit! A child"s toy consists of a block that attaches to a table, a spring connected to that static block, a ball of negligible size, and a launching ramp (fig. 1). The spring has a spring constant k, the ball has a mass m, and the ramp rises a height h above the table, the surface of which is a height h above the floor. The spring rests initially at its equilibrium length and is then compressed a distance l, where the ball is held at rest. The ball is then released and launched up the ramp.
