10. Exercises
From Mechanics
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| + | 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 <math>\text{m}{{\text{s}}^{-1}}</math>. | ||
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Revision as of 16:35, 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 \displaystyle \text{m}{{\text{s}}^{-2}},
b) accelerates downwards at 0.2 \displaystyle \text{m}{{\text{s}}^{-2}},
c) travels upwards with a retardation of 0.1 \displaystyle \text{m}{{\text{s}}^{-2}}.
Loading...Exercise 10.2
A car of mass 1 tonne travels along a horizontal road and brakes from 50 \displaystyle \text{m}{{\text{s}}^{-1}} to rest in a distance of 300 m. Find the magnitude of the braking force on the car.
Exercise 10.3
A particle of mass 5 kg slides down a smooth plane, inclined at an angle of 30.\displaystyle 0{}^\circ to the horizontal. Find the acceleration of the particle down the plane.
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 \displaystyle \text{m}{{\text{s}}^{-1}}.
