(a) A 120-lb woman rides a 15-lb bicycle up a 3-percent slope at a constant speed of...

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(a) A 120-lb woman rides a 15-lb bicycle up a 3-percent slope at a constant speed of 5 ft/s. How much power must be developed by the woman?

(b) A 180-lb man on an 18-lb bicycle starts down the same slope and maintains a constant speed of 20 ft/s by braking. How much power is dissipated by the brakes?

Ignore air resistance and rolling resistance.

(a) A 120-lb woman rides a 15-lb bicycle up a

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Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073398242

11th edition

Authors: Ferdinand Beer, E. Russell Johnston Jr., David Mazurek, Phillip Cornwell, Brian Self

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Question Posted: Jun 01, 2017 10:47 AM

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(a) A 120-lb woman rides a 15-lb bicycle up a 3-percent slope at a constant speed of...

Question:

5 ft/s 20 ft/s 3% slope

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tan 3100 1718 o a W W B W W 15 120 W 135 lb P W Wv Wsin...View the full answer

Vector Mechanics for Engineers Statics and Dynamics

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