Question

a car is travelling at 20 km/h and speeds upto 60km/h in 6 seconds. what is its acceleration?

Answer 1

20km/h= 5.5m/s
60km/h= 25m/s
v=u+at
25=5.5+a6
19.5=6a
a=3.25m/s2
[1km/h=5/18 m/s]

Answer 2

$\huge\mathfrak\pink{\underline{\underline{AnSwer}}}$

★ Acceleration = rate of change of velocity

Here,

a = final velocity - initial velocity / time taken

a =( 60× 5/18 - 20* 5/18) / 6

a = 50/27 m/s^2

happy to help!

:)