To measure the gravity on a new planet, scientist constructed a tower and timed how long an object took to hit the surface of the planet after being dropped. If the tower was 50 meters high and the object took 4 seconds to fall, what is the acceleration due to gravity of the planet?

d = 0.294 m

1)  g = k*d/m

To find k:  k = 4π²*m/T²

T = 16.3/11 = 1.4818 sec

So

k = 4.495 N/m

Using (1),

g = 4.495*0.294/0.25 = 5.286 m/s²

Explanation:

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

im sorry i dont know