Question

if a body start from rest and travel 120m in the 8th second then acceleration?

Answer 1

Sn=u+a/2*(2n-1)
120=0+a/2(2*8-1)
a=240/15
a=16 is the ans

Answer 2

hey dear
here is your answer

given data :

initial velocity (u) = 0

distance travelled in 8th second is 120 meter

nth second = 8

to find : acceleration

here we go

solution :

Sn = u+a/2(2n-1)

120 = 0+a/2(2(8)-1)

120 = a/2(15)

120*2 = 15a

a = 240/15

a = 16 m/s²

hope it helps :)