Question

A truck is moving with the speed 126km/h.It applies bracks and track accelerate with -0.5m/s^2.Find the distance upto which it would travel after applying bracks.Also find time when it stops when bracks are applied.

pls solve with explanation..​

Answer 1

Answer:

Given:

u=36km/h=10m/s

t=5s

v=0m/s

1). a=(v-u)/t

a=(0-10)/5

a=-10/5=-2m/s²

so,retardation is 2m/s².

2). v²=u²+2aS

0²=10²+2*(-2)*S

0=100-4*S

S=-100/-4=25m Ans.