Question

The velocity -time graph of SUV is given below. 

a) Describe the motion of the SUV.

b) Calculate the accelerations, AB, BC and CD.

c) Find the net displacement for the journey.

d) During which time period is the SUV moving with constant velocity. What is the velocity?​​

Answer 1

Answer:

a)uniform acceleration for for 2 mins uniform motion for three minutes thereby uniform retardation for 1 min

b)case 1:v=u+at

v=15m/s

u=0m/s

t=2 min

15=0+2a

a=15/2

a=7.5m/s

case 2:acceleration =0

case 3:v=0

u=15

t=1 min

0=15+a

a=-15m/s