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15. Exercises

From Mechanics

Revision as of 16:24, 11 November 2009 by Ian (Talk | contribs)
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       Theory          Exercises      

Exercise 15.1

Calculate the momentum of

a) a train, of mass 120 tonnes, travelling at 40 ms−1,

b) a table tennis ball, of mass 3 grams, travelling at 4 ms−1,

c) a car, of mass 1200 kg, travelling at 36 kmph.


Answer a | Answer b | Answer c | Solution a | Solution b | Solution c


Exercise 15.2

A ball, of mass 100 grams, is travelling horizontally at 8 ms−1 when it hits a wall and rebounds at 5 ms−1. Assume that all the motion is perpendicular to the wall. Calculate the magnitude of the impulse on the ball.

Answer | Solution

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