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At time t = 0, a car moving along a stra...

At time `t = 0,` a car moving along a straight line has a velocity of `16 ms^-1.` It slows down with an acceleration of `-0.5t ms^-2,` where t is in second. Mark the correct statement (s).

A

`32 s`

B

`16 s`

C

`8.0 s`

D

`4.0 s`

Text Solution

Verified by Experts

The correct Answer is:
C
`a-t` graph

Area `=(-t^(2))/(4)=` change in velocity
`rArr` Final velocity `=16-(t^(2))/(4)=0`
`rArr t=8 sec.`
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