A motorcycle (mass of cycle plus rider = 2.5 102 kg) is traveling at a steady speed of 15 m/s. The force of air resistance acting on the cycle and rider is 1.5 102 N. Find the power necessary to sustain this speed under the following conditions.(adsbygoogle = window.adsbygoogle || []).push({});

b) the road is sloped upward at 27° with respect to the horizontal

m = 250

v = 15

t = 90

distance = 1350

angle = 27 degree

The force of air resistance acting on the cycle and rider = 150

P = ?

( I FOUND THE TIME AND DISTANCE ,IM POSITIVE THE VALUES ARE CORRECT SINCE I SOLVED ANOTHER PART OF THIS QUESTION WITH THE SAME VALUES)

**I used the Formula of Power = Work/time

Power = 150*1350* cos 27 / 90 which comes out to be 2004.76

marked wrong . any suggestions???

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# Homework Help: Find Power

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