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A particle is travelling with initial ve...

A particle is travelling with initial veocity of `2 m//s` and moves in a straight line with a restardation of `0.1 m//s^(2)`. The time at which the particle is `15 m` from the starting point is :

A

20 sec

B

`23.2 sec`

C

`46.4 sec`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
`-15 = 2 t + (1)/(2) (-0.1) t^(2)`
`t = 46.4 sec`
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