A car is moving with speed of 150 km / h and after applying the brake it will move 27 m before it stops. If the same car is moving with a speed of one third the reported speed then it will stop after travelling m distance.

Question

A car is moving with speed of 150 km / h and after applying the brake it will move 27 m before it stops. If the same car is moving with a speed of one third the reported speed then it will stop after travelling m distance. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Stopping distance =( v 2/2 a )= d If speed is made (1/3) rd d prime=(1/9) d . d prime=(27/9)=3 Braking acceleration remains same

Q. A car is moving with speed of $150 km / h$ and after applying the brake it will move $27 m$ before it stops. If the same car is moving with a speed of one third the reported speed then it will stop after travelling ______ $m$ distance.

Stopping distance $= \frac{v ^{2}}{2 a} = d$
If speed is made $\frac{1}{3} r d$
$d^{'} = \frac{1}{9} d . d^{'} = \frac{27}{9} = 3$
Braking acceleration remains same

Q. A car is moving with speed of 150km/h and after applying the brake it will move 27m before it stops. If the same car is moving with a speed of one third the reported speed then it will stop after travelling ______m distance.

Stopping distance =2av2​=d If speed is made 31​rd d′=91​d.d′=927​=3 Braking acceleration remains same

Q. A car is moving with speed of $150 km / h$ and after applying the brake it will move $27 m$ before it stops. If the same car is moving with a speed of one third the reported speed then it will stop after travelling ______ $m$ distance.

Stopping distance $= \frac{v ^{2}}{2 a} = d$
If speed is made $\frac{1}{3} r d$
$d^{'} = \frac{1}{9} d . d^{'} = \frac{27}{9} = 3$
Braking acceleration remains same