1. A body of mass 10 slugs is dropped from a height of 1000 ft with an initial velocity of 2 feet per second. The body encounters an air resistance proportional to its velocity. If the limiting velocity is known to be 20 ft/sec, find (a) an expression for the velocity of the body at any time t, (b) an expression for the position of the body at any time t, (c) the velocity of the body after 1 second, (d) the time required for the body to attain a velocity of 5 ft/sec, and (e) the time when the body is halfway between its initial position and the ground. Use g = 32 fps?. %3D

1. A body of mass 10 slugs is dropped from a height of 1000 ft with an initial velocity of 2 feet per second. The body encounters an air resistance proportional to its velocity. If the limiting velocity is known to be 20 ft/sec, find (a) an expression for the velocity of the body at any time t, (b) an expression for the position of the body at any time t, (c) the velocity of the body after 1 second, (d) the time required for the body to attain a velocity of 5 ft/sec, and (e) the time when the body is halfway between its initial position and the ground. Use g = 32 fps?. %3D

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter18: Energy Storage

Section: Chapter Questions

Problem 4P

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