Question

v=u+at is the equation of motion the describing relation between

Answer 1

the rate of change of momentum of the body and the force applied on it(newtons 2nd law of motion)

Answer 2

Hi thank you for asking the question
Suppose a body is moving from one position to another
If v is the speed with which body is moving and u is the distance covered and a is acceleration and t is time
the according to the equation
v=U+at
The speed of the body is directly proportional to the distance it covered with acceleration in unit time
Hope this answer helps you