The mad scientist Dr Experimento has decided to change the s

The mad scientist Dr. Experimento has decided to change the strength of gravity so that it will take 1 minute for a stone dropped from rest to fall 10 feet. Assume that the force of gravity gives the stone a constant acceleration a(t) = G. Find the value of G in feet/sec² .

Solution

In uniform acceleration the distance covered = 0.5*a*t^2 where a is acceleration. Using this we can say:

distance covered by stone = 0.5*g*t^2

so g=2*D/t^2 = 2*10/60^2=0.0055ft/sec2