Question

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

Answer 1

Given,

Velocity = 40m/s.

Time = 10 seconds.

Acceleration = ?

Here we can use a = v-u/t formula.

Let us take u = 0.

= 40-0/10

= 40/10

= 4.

The acceleration of a body after 10 seconds is 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.