A car starts from rest and attains a velocity of 40 metres per second in 20 seconds. it maintains this velocity for 30 seconds and then comes to rest in 25 seconds.

Question

1. sketch the velocity time graph for the motion.

Answer 1

I can't sketch it here.
The first 20 seconds velocity-time will be a sloping graph upward.
the next 30 seconds will be a horizontal line
the last 25 seconds will be a sloping line downward, ending at v=0

Answer 2

Thank you all for your help

Answer 3

a toy car starts from rest and accelerate uniformly at 2.0m/s square for 5.0 seconds. calculate its final velocity...

Please help me with this also