PHYS 2001 : Practice Exam
Document Summary
Name____________________: (10pts) in an amusement park ride, a child stands against the wall of a cylindrical room that is then made to rotate. The floor drops downward but the child remains pinned against the wall. 2, where me is the mass of the earth. ) 4: (5pts) a 25-kg box is sliding down an ice-covered hill. When it reaches point a, the box is moving at 11 m/s. Point a is at the bottom of a circular arc that has a radius r = 7. 5 m. What is the magnitude of the normal force on the box at point a: 250 n, 400 n, 280 n, 650 n, 900 n. A: (5pts) a concrete block is pulled 7. 0 m across a frictionless surface by means of a rope. The tension in the rope is t = 40 n; and the net work done on the block is 247 j.
