PHYS 21800 Study Guide - Midterm Guide: Circular Motion, Headon, Resultant Force
15 Dec 2015
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Phys 101 midterm exam: suppose that an object travels from one point in space to another. Make a comparison between the displacement and the distance traveled. The displacement is either less or equal to the distance traveled. Be the same as f: a bullet is fired horizontally and at the same instant a second bullet is dropped from the same height. Ignoring air resistance, compare the times of fall of the two bullets. Directed toward the center of the circular path: an acorn falls from a tree. Compare its kinetic energy k to its potential energy u just before it falls, as it is falling, and once it hits the ground. As its falling: kinetic increases and potential decreases. Once it hits the ground: an object moves 15. 0 m north and then 11. 0 m south. Find both the distance traveled and the magnitude of the displacement vector.
