Question

A car aceeperate from 36km/h to 90km/h in 5 second whta qas the axelleration in m/s squre and how far it didi it rravel in this tym aaaume constant acceleration

Answer 1

changing units to m/s we get

36km/hr=10m/s

90km/hr=25m/s

using v=u+at

25=10+(5)a

15=5a

a=3m/s^2

now use v^2-u^2=2as

(25)^2 - (10)^2=2(3)(s)

525=6s

s=87.5m