Asked by Goyong
A tow truck pulls a car 5.00km along a horizontal roadway using a cable having tension of 850N (a) how much work does the cable do on the car? if it pulls 35.0° above the horizontal ? (b) How much work does the cable do on the tow truck in both cases(a)? (C) how much work does the gravity do on the car in part (a)?
Answers
Answered by
bobpursley
work= force*distance*cosTheta where theta is the angle between the force and the movement.
a) work= 850*5000*cos35deg
b) same angle, same tension, same distance
c) zero, there is no vertical distance moved
a) work= 850*5000*cos35deg
b) same angle, same tension, same distance
c) zero, there is no vertical distance moved
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