Question

A car trains a velocity of 36km/h after accerlating uniformly from rest in 5sec find the distance travelled

Answer 1

v= 36 km/hr = (36× 1000) / 3600 = 10 m/sec

u= 0 (rest)

t=5 sec

from 1st eq of motion

v= u+at

10 = 0 + a× 5
10 = 5a
a= 10/ 5
a= 2 m/s²

from 3rd eq of motion
v² = u²+ 2as

(10)² = 0 + 2× 2×s
100 = 4s
s= 100 / 4
s= 25 m