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प्रश्न
Why is uniform circular motion said to be accelerated?
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उत्तर
A body travelling in a circular path with a constant speed is said to be moving at an accelerated rate, since the velocity changes as the direction changes.
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संबंधित प्रश्न
Draw a neat labelled diagram of conical pendulum. State the expression for its periodic time in terms of length.
Define Uniform circular motion.
A particle goes round a circular path with uniform speed v. After describing half the circle, what is the change in its centripetal acceleration?
A mass 'm' is tied to one end of a spring and whirled in a horizontal circle with constant angular velocity. The elongation in the spring is 1 cm. If the angular speed is doubled, the elongation in the spring is 6 cm. The original length of the spring is ______.
Statement A: Uniform circular motion is a case of accelerated motion
Statement B: In the third equation of motion we do not have the term time
For a particle performing uniform circular motion, choose the correct statement(s) from the following:
- Magnitude of particle velocity (speed) remains constant.
- Particle velocity remains directed perpendicular to radius vector.
- Direction of acceleration keeps changing as particle moves.
- Angular momentum is constant in magnitude but direction keeps changing.
Earth also moves in circular orbit around sun once every year with on orbital radius of 1.5 × 1011 m. What is the acceleration of earth (or any object on the surface of the earth) towards the centre of the sun? How does this acceleration compare with g = 9.8 m/s2?
A wheel rotating at the same angular speed undergoes constant angular retardation. After the revolution, angular velocity reduces to half its initial value. It will make ______ revolution before stopping.
In uniform circular motion, although the speed is constant, why does acceleration occur?
By applying Kepler's third law to the formula for centripetal force, Newton concluded that the force acting on a planet is:
