Question

Question 4:
i. A
car in
initially at rest, picks up a velocity of 72 kmhr-1, over a distance of 25 m.
Calculate the acceleration of the car.

Answer 1

Answer:

Acceleration = v² - u² = 2as

= v = 72km/h = 4m/s

= u = 0m/s

= s = 25m.

= 4² - 0² = 2 × a × 25

= 16 = 50a

= a = 16/50

= a = 0.32m/s².