Question

Calculate the time taken by a bus travelling with a speed of 72km/hr when it stops at a distance of 10m after applying brake.

Answer 1

Answer:

v=u+at

0=20+(−2)t

−20=−2t

t=10seconds.

So my Nano will take 10 seconds to stop.

Now to calculate the distance for which my Nano will stop is given by;

v2=u2+2ax

(0)2=(20)2+2(−2)x

0=400−4x

−400=−4x

x=100metres.