Question

a bus initially at rest squires a velocity of 72km/h in 5s calculate the accleratiob​

Answer 1

Step-by-step explanation:

Convert 72 km per hour into meter per second = 72×5/18 = 20

a = v-u/t

a = 20-0/5

a = 20/5

a = 4

Accelaration is 4m/s²

Answer 2

Answer:

4 m/s^2

Step-by-step explanation:

Given..

u = 0 m/s [Since it starts form rest]

v = 72 km/hr = 20 m/s

t = 5s

a = ?

Using first equation of motion :-

v = u + at

20 = 0 + a (5)

20 = 5a

a = 20/5

a = 4 m/s^2