Question

Explain the motion of a planet around the Sun in an elliptical path.

  • Force Class 10 ICSE
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Answer

The motion of a planet around the Sun in an elliptical path is an example of uniform circular motion. The gravitational force of attraction on the planet by the Sun provides the necessary centripetal force for this uniform circular motion as it is always directed towards the centre of the Sun.

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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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