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Uniform Circular Motion

Assertion :If...

Question

Assertion :If the speed of a body is constant, the body cannot have a path other than a circular or staright line path. Reason: It is possible for a body to have a constant speed in an accelerated motion.

A

If both Assertion and Reason are correct and Reason is the correct explanation of the Assertion

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B

If both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion

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C

If Assertion is true but Reason is false

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D

If Assertion is false but Reason is true

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Solution

The correct option is D If Assertion is false but Reason is true
The assertion is wrong as the body can have any 2-dimensional motion including a projectile motion with a constant speed. The reason is correct as a body can undergo accelerated motion with the same speed, for eg., in a circular motion

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