Question

s =ut + 1/2 at ( square) solve the equation

Answer 1

let t=1s
and u=0,F=40,m=1,S=20
solution :
       S=ut+1/2at2
      20 =(0)(1)+1/2(40)(1)2
      20 =0+1/2(40)
      20  =1/2(40)
         

Answer 2

Hope it will help you:)