Question

A car accelerates uniformly from rest. If the reading
on the speedometer after 5 s is 72 km h -1, determine
the acceleration of the car.
​

Answer 1

Answer:

Initial velocity, u = 0

Final velocity, v = 72 km h⁻¹

                          = 72 X 1000 / 60X60 m s⁻¹

                          = 72000/3600 m s⁻¹

                          = 20 m s⁻¹

Time taken, t = 5s

Acceleration, a = v - u / t

                         = 20 - 0 / 5

                         = 20/5 = 4 m s⁻²

Step-by-step explanation:

Hope it helsp you buddy :)

Answer 2

$\huge{\boxed{\red{\bf{Kris \: Wu:-}}}}$

${\huge{\fcolorbox{pink}{PINK}{♡HAN JU HUI♡}}}$