Question

obtain first equation of motion v=u+at velocity time relation by using velocity graph
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Answer 1

Answer:

Explanation:

a=v-u/t

Cross method

at=v-u

That is v=u+at

Answer 2

Answer:

Consider a velocity-time graph for a uniformly accelerated body starting from rest is represented as follows.

u: velocity at time t1

v: velocity at time t2

If acceleration is represented as a, then, acceleration is defined as the rate of change in velocity.

  a = v-u/t2-t1

  a = v-u/t  

     or, v-u = at

 v = u + at

This is first equation of linear motion.