Question

Study the velocity time graph of given figure and calculate:
a)Acceleration from A to B
b)Acceleration from B to C
c)Average velocity from C to D
d)Distance covered in region BCEF

Answer 1

a-25/3m/s^2
b-15m/s^2
c-15m/s
d-25m

Answer 2

We know that,

Acceleration =Velocity /Time

a. V=25m/s

t=3s

Acceleration from A to B=25/3m/s2

b. V=25-15=10m/s

t=4-3=1s

Acceleration from B to C=10/1=10m/s2

c. Average velocity =(V1+V2)/2

=›(15+0)/2=15/2=7.5m/s