9. Exercises

From Mechanics

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===Exercise 9.3===
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A bicycle moves with a constant velocity along a straight horizontal road. If the forward force which the cyclist exerts by pedalling is 28 N, what is the magnitude of the resistive force acting on the bicycle and cyclist ?
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</div>{{#NAVCONTENT:Answer|Answer 9.3|Solution|Solution 9.3}}

Revision as of 15:27, 14 September 2009

       Theory          Exercises      

Exercise 9.1

A parachutist is falling vertically at a constant speed. He has mass 80 kg. Find the magnitude of the upward force acting on the parachute.


Exercise 9.2

Each of the bodies shown below are moving with a constant velocity. Use this to find P and Q.

Image:E9.2.GIF


Exercise 9.3

A bicycle moves with a constant velocity along a straight horizontal road. If the forward force which the cyclist exerts by pedalling is 28 N, what is the magnitude of the resistive force acting on the bicycle and cyclist ?