Question

A body is moving with an uniform velocity 40m/s. Find its accelaration after 10 seconds

Answer 1

Given,

Velocity = 40m/s.

Time = 10 seconds.

Acceleration = ?

a = v-u/t

= 40-0/10

= 40/10

=4m/s^2.

Answer 2

Given,
that body is moving with uniform motion,
We know that acceleration is defined as rate of change in velocity with respect to time.
if there is no change in velocity (uniform) then acceleration of body will zero.
dv= 0
dt = 10sec
We know that
acceleration =dv/dt

acceleration = 0/10
acceleration = 0.