10. Exercises
From Mechanics
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| + | ===Exercise 10.5=== | ||
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| + | A particle of mass 20 kg is pulled across a rough horizontal plane by a string, inclined at 30<math>{}^\circ </math> to the horizontal. If the tension in the string is 50 N and the acceleration produced is 0.5 <math>\text{m}{{\text{s}}^{-2}}</math> find the friction force on the particle and the coefficient of friction. | ||
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| + | </div>{{#NAVCONTENT:Answer|Answer 10.5|Solution|Solution 10.5}} | ||
Revision as of 16:39, 16 September 2009
| Theory | Exercises |
Exercise 10.1
A package with mass 300 kg is lifted vertically upwards. Find the tension in the cable which lifts the package, when the package,
a) accelerates upwards at 0.1
b) accelerates downwards at 0.2
c) travels upwards with a retardation of 0.1
Answer a | Answer b | Answer c | Solution a | Solution b | Solution c
Loading...Exercise 10.2
A car of mass 1 tonne travels along a horizontal road and brakes from
50
Exercise 10.3
A particle of mass 5 kg slides down a smooth plane, inclined at an angle of 30.
Exercise 10.4
A particle of mass 6 kg starts from rest and accelerates uniformly. The resultant force on the particle has magnitude 15 N. Find the time taken to reach a speed of 10
Exercise 10.5
A particle of mass 20 kg is pulled across a rough horizontal plane by a string, inclined at 30
