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If a car at rest accelerates uniformly t...

If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, it covers a distance of:

A

20 m

B

1440 m

C

400 m

D

2980 m

Text Solution

Verified by Experts

The correct Answer is:
c
Here applying v=u+at
`v=144 kmh^(-1)=40ms^(-1),u=0`
`:. A=(v)/(t)=(40)/(20)=2 ms^(-2)`
Now `s=0+(1)/(2)xx2xx(20)^(2)=400m`
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