Question

A truck running along a straight line increases its speed uniformly from 30 m/s to 60 m/s over a time interval 1 min. The distance traveled during this time intervals is
a) 900m
b) 1800m
c)2700m
d)3600m

Answer 1

u=15 m/s

v=30 m/s

t=1 Min=60 s

a=(v-u)/t

=(30-15)/60

=15/60=1/4 m/s2

s=ut+1/2 at2

=15(60)+1/2*(1/4)*60*60

=900+450

=1350 m

=2.7 km