Question

A cyclist travelling at 8 ms-1 applies her brakes and comes to a stop in a distance of 5 metres. Calculate the acceleration of the cyclist.

Answer 1

u=8m/s, s=5m as the cycle stops v=0

we know,v^2-u^2=2as

0-(8)^2=2a(5)

-64=10a

a=-6.4