Question

draw the velocity time graph and obtain first equation of motion​

Answer 1

Answer:

Draw a line parallel to x-axis DA from point, D from where object starts moving. Draw another line BA from point B parallel to y-axis which meets at E at y-axis. Above equation is the relation among initial vlocity (u ), final velocity (v ), acceleration (a) and time (t). It is called first equation of motion.

Answer 2

Answer:

Let an object is moving with uniform acceleration.

u = initial velocity of object

v = final velocity of object

a = uniform acceleration

Let object reaches at point B after time (t) Now, from the graph

Slope = Acceleration (a)=

time

change in velocity

Change in velocity = AB = v - u

Time = AD = t

a=

t

v−u

Solving we get

v=u+at