Find the velocity (in m/s) that a car will achieve after 20 seconds if it starts and accelerates at 3.2 m/s².

Correct option is B

Here given values are:-
Initial velocity of car (u) = 0m/s.
Acceleration of car (a) = 3.2 m/s²
Time = 20 seconds
In order to find final velocity 'v'.
Applying Newton's first equation of motion
V = u + at
v = 0 + 3.2×20
v = 64 m/s
Hence, option (b) will be the correct answer.