Question

A body describe 10m in 3rd second and 28 m in 6th second of its motion. If the motion us uniformly accelerated how far it will go in 7th second

Answer 1

We have formula sn = u + a/2 ( 2n –1 )

as it is uniformly accelerated so u = 0

10 = a/2 *5

a = 4m/s2

s = 4 / 2 ( 2*7 –1 )

= 2(13)

=26m

Hope it helps!