A falling package with a parachute is greatly affected by air resistance. Suppose a package (m 25 kg), dropped from an altitude of y = 1500 m, hits the ground at a speed of v = 45 m/s. Calculate the work done by air resistance. By conservation of energy, the initial total mechanical energy is equal to the final total mechanical energy. Let K be the kinetic energy, U be the gravitational potential energy, and Wair be the work done by the drag force from air resistance.

A falling package with a parachute is greatly affected by air resistance. Suppose a package (m 25 kg), dropped from an altitude of y = 1500 m, hits the ground at a speed of v = 45 m/s. Calculate the work done by air resistance. By conservation of energy, the initial total mechanical energy is equal to the final total mechanical energy. Let K be the kinetic energy, U be the gravitational potential energy, and Wair be the work done by the drag force from air resistance.

Name: E1 = E2K1 + U1 + Wair = K2 + U2Some of the terms in the equation abov
Uploaded: 2024-03-20T06:57:25.000Z
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Description: E1 = E2K1 + U1 + Wair = K2 + U2Some of the terms in the equation above are zero so it can be simplified to:+ Wair =Isolating the work done by air resistance, we get:Wair = ½- mPlugging in the values given, the work done by air resistance is:Wair =2.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Energy Of A System

Section: Chapter Questions

Problem 7.2P: A raindrop of mass 3.35 10-5 kg falls vertically at constant speed under the influence of gravity...

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