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The distance travelled by a particle in ...

The distance travelled by a particle in a straight line motion is directly proportional to `t^(1//2)`, where `t` is the time elapsed.

A

always retarded

B

always accelerated

C

first retarded and then accelerated

D

first accelerated and then retardation

Text Solution

Verified by Experts

The correct Answer is:
A
`S=kt_(1//2)=(ds)/(dt)=k((1)/(2))^((1)/(t^(2))1)`
Speed `=(k)/(2 sqrt(t))`
As 't' increases speed decreases. Therefore always retarded motion.
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