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प्रश्न
Explain the meaning of uniform circular motion. Give one example of such motion.
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उत्तर
When a particle moves with a constant speed in a circular path, its motion is said to be the uniform circular motion. For example Revolution of earth around the sun is an example of uniform circular motion.
संबंधित प्रश्न
In U. C. M (Uniform Circular Motion), prove the relation `vec v = vec w xx vec r`, where symbols have their usual meanings.
How does uniform circular motion differ from uniform linear motion?
Earth moves around the sun with uniform velocity.
Solve the following problem.
A car moves in a circle at a constant speed of 50 m/s and completes one revolution in 40 s. Determine the magnitude of the acceleration of the car.
Solve the following problem.
A particle moves in a circle with a constant speed of 15 m/s. The radius of the circle is 2 m. Determine the centripetal acceleration of the particle.
Is the uniform circular motion accelerated? Give reasons for your answer.
Which of the following is correct about uniform circular motion
- the direction of motion is continuously changed
- the direction of motion is not changed
- speed and direction both remain constant
- speed is constant but the direction is changing
Earth can be thought of as a sphere of radius 6400 km. Any object (or a person) is performing circular motion around the axis of earth due to earth’s rotation (period 1 day). What is acceleration of object on the surface of the earth (at equator) towards its centre? what is it at latitude θ? How does these accelerations compare with g = 9.8 m/s2?
Angular speed of hour hand of a clock in degree per second is ______.
Angular displacement is measured in which unit?
