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))

The coefficient of friction between the tyres and road is 0.4. The min

1.	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))
Answer» 8m 4m 10m 16m Solution :(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`