A body falls freely from the top of a tower and it falls 7/16th of the total distance in its last second. The time taken by the body for complete motion is….. ans:4 sec pz solve it.

s=gt^2
st=(1/2)g(2t-1)

(7/16)s=(1/2)g(2t-1)
(7/16)gt^2=(1/2)g(2t-1)

7t^2-32t+16=0
(t-4)(7t-4)=0