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An object starts from rest from the poin...

An object starts from rest from the point A to rest at point B on the same straight line at a distance d. It moves over the first part of the distance with an acceleration `alpha m//s^(2)` and for the remainder the retardation `beta m//s^(2)`. Find the time taken to complete the journey.

A

`2s((1)/(a)+(1)/(r))`

B

`(2s)/((1)/(a)+(1)/(r))`

C

`sqrt(2s((1)/(a)+(1)/(r)))`

D

`sqrt(2s(a+r))`

Text Solution

Verified by Experts

The correct Answer is:
C
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