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A moving body is covering distances in p...

A moving body is covering distances in proportion to square of time along a straight line. The acceleration of the body is

A

Increasing

B

Decreasing

C

Zero

D

Constant

Text Solution

Verified by Experts

The correct Answer is:
D
`x prop t ^(2)`
`x = kt ^(2)`
`(dx)/(dt) = 2 kt implies (d ^(2) x)/(dt ^(2)) = a = 2k ` constant
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