Answer:
Option a
Step-by-step explanation:
Given is the graph showing the relation between time and velocity.
Velocity is shown on y axis, time on x axis.
The graph shows that relation is linear with constant slope
To find equation we see that y intercept is 4,
Two points are (0,4) and (10,10)
Slope=
So equation for v is
v=0.6t+4
Now to find acceleration we can find derivative of v
For one unit change in t, v changes by 0.6 m
In other words, rate of change of velocity =
acceleration = 0.6 m/sec^2
Since acceleration is independent of t, we get
for t =10 s also
acceleration =0.6m/sec^2
OPtion a is right