Two objects are dropped simultaneously from an initial height of 100m, with an initial velocity of zero. They fall straight down. For mass 1, you can ignore air drag. For mass 2, air drag DOES affect the motion. Here is the position vs. time for 100 both objects: 90 80 y = 100 - 0.1164*t-4.795*t²+0.1283*t3 70 • mass 1: no air drag 60 I mass 2: with air drag 50 40 30 y = 100 - 1/2*9.8*t? 20 10 3 time (s) 1) Harder: What's the acceleration of mass 2? Note that the acceleration CHANGES! So write this as an equation. 2) What is the acceleration of mass 2 at t= 0.01 seconds? At t = 1.00 seconds? At t = 4.00 seconds? 3) Obtain the VELOCITY of mass 1 just before it hits the ground, so at t = 4.5 seconds. (w) 148jay

Two objects are dropped simultaneously from an initial height of 100m, with an initial velocity of zero. They fall straight down. For mass 1, you can ignore air drag. For mass 2, air drag DOES affect the motion. Here is the position vs. time for 100 both objects: 90 80 y = 100 - 0.1164t-4.795t²+0.1283t3 70 • mass 1: no air drag 60 I mass 2: with air drag 50 40 30 y = 100 - 1/29.8*t? 20 10 3 time (s) 1) Harder: What's the acceleration of mass 2? Note that the acceleration CHANGES! So write this as an equation. 2) What is the acceleration of mass 2 at t= 0.01 seconds? At t = 1.00 seconds? At t = 4.00 seconds? 3) Obtain the VELOCITY of mass 1 just before it hits the ground, so at t = 4.5 seconds. (w) 148jay

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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