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The coefficient of friction between the ...

The coefficient of friction between the tyres and road is 0.4. The minimum distance covered before attaining a speed of `8 ms^(-1)` starting from rest is nearly ( take `g=10 ms^(-2)`)

A

8m

B

4m

C

10m

D

16m

Text Solution

Verified by Experts

The correct Answer is:
A
(d) Retardation, `a=(mu mg)/(m)=mug=4ms^(-2)`
using, `v^(2)=u^(2)+2as`
`(8)^(2)=(0)^(2)+2(4)(s)`
`therefore s=8m`
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