Motion in a Straight Line

Av2 versus x graph is shown below. Using equation of motion,
v2=u2+2ax ...(i)
We know that, the equation of straight line.
y = mx + c ...(ii)
Comparing Eqs. (i) and (ii),
Slope,m=2a=

80−20

30−0

=

60

30

=2
Now, the acceleration, a=

2

2

=1m∕s2