Question

A train starts from rest and accelerates uniformly at 1.5m/s²

until it attains a speed of 30m/s. Find the time taken and the
distance travelled.

Answer 1

V= 30m/s u=0 A=1.5, time t=? distance S=?

Explanation:

to find time:

A=v-u/t

t=v-u/a

t =30-0/1.5

t = 20 secs

to find distance S

S= UT +½at²

S= 0×20+ 1.5×20²/2

s= 300m