Question

How v=u-at can be used to explain that when the direction of velocity and acceleration are opposite to each other then velocity will slow down and come to 0 and start moving in the direction of acceleration.

Answer 1

Let initial velocity (u) = 2m/s and acceleration = 2 m/s^2 then:

after t = 1sec ,velocity will become 0.

v = 2 - 2*1 = 0