Question

A vehicle is accelerating on a straight road its velocity at any instant is 30 km per hour after 2 second it is 33.6 km per hour and further and after for the two seconds it is 37.2 km per hour find the acceleration of vehicle in metre per second .is the acceleration uniform

Answer 1

Acceleration(1)=change in velocity /time taken for change

=33.6-30 /2

=3.6 /2

=1.8

acceleration(2)=(37.2-33.6) /2

=3.6 /2

=1.8

sine acceleration at both instants are same we can say that acceleration is constant/uniform

if you want to find total acceleration ,

37.2-30 /4

7.2 /4

1.8