Question

A car has an initial velocity of 24 km/h, the car then accelerates at 2 m/s² for 6 seconds. Calculate the final velocity in km/h.​

Answer 1

final velocity in km/h= 67.2km/h

Step-by-step explanation:

Data

initial velocity (u)= 24km/h

from 36km/h = 10m/s

then 24km/h= u

hence,

`u= (24)/(36) * 10`

u= 20/3 m/s

Time= 6s

Acceleration= 2m/s²

`v = u + at`

`v = (20)/(3) + 2(6)`

`v = (20)/(3) + 12`

`v = (56)/(3)`

final velocity = 56/3 m/s

From 10m/s=36km/h

56/3 m/s = V

V(km/h)=

`(56)/(3) * (36)/(10)`

V(km/h)=67.2km/h