PHYS114 Study Guide - Midterm Guide: International System Of Units, Net Force, Antiderivative
24 Oct 2018
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She jumps o backwards such that the board is propelled forward to a speed of 8 m/s. Use the impulse-momentum theorem to calculate the impulse provided by the wall in si units (be careful with the sign). Then sketch a possible fx(t) curve together with an average force estimate assuming the collision took t = 10 ms. 1: [5] a glider (m = 200 g) is held at the top end of a tilted air track (angle with horizontal. = 30 ) of length l = 2m. At the other end is a short spring with constant k = 100 n/m. Start with a drawing of the situation and state the laws used to solve the problem. 2: [5] a simple yo-yo is made from a (thin) disk of radius r and mass m (icm = 0. 5m r2) with a thread wound around it.
