Question

A uniform circular motion is an accelerated motion. Explain it. State whether the acceleration is uniform or variable? Name the force responsible to cause this acceleration. What is the direction of force at any instant? Draw diagram in support of your answer.

  • Force Class 10 ICSE
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Answer

A uniform circular motion is accelerated as the speed is same however the direction changes continuously. So, it is said to be a uniform accelerated motion.

accelerated-uniform-circular-motion-diagram-q5-concise-physics-icse-class-10-solutions-345x382

Centripetal force is required for this acceleration and its direction is towards the centre of the circular path.

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Class 10 ICSE Physics Full chapter Solution of chapter force

State whether the following statements are true or false by writing T/F against them.
(a) Earth moves around the Sun with a uniform velocity.
(b) The motion of Moon around Earth in a circular path is an accelerated motion.
(c) A uniform linear motion is unaccelerated, while a uniform circular motion is an accelerated motion.
(d) In a uniform circular motion, the speed continuously changes because the direction of the motion changes.
(e) A boy experiences a centrifugal force on his hand when he rotates a piece of stone tied at one end of a string, holding the other end in the hand.

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