Question

A particle start moving with acceleration 2m/s^2 distance travel by it in 5th half second

Answer 1

a=2
u=0
t=in 5th sec

here t=n
so,
Sn=u+a(n-1/2)
5s=0+5(5-0.5)
5s=5×4.5
s =22.5/5
s=4.5m
the particle will travel 4.5m