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Assertion : Velocity and acceleration of...

Assertion : Velocity and acceleration of a particle are given as,
`v=hati-hatj and a=-2 hati+2 hatj` This is a two dimensional motion with constant acceleration.
Reason : Velocity and acceleration are two constant vectors.

A

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

B

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

C

If Assertion is true, but the Reason is false.

D

If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
`a=-2(hati-hatj)=-2v`
i.e. a and v are constant vectors and antiparallel to
each other. So motion is one dimensional. First
retarded then accelerated in opposite directions.
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Knowledge Check

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