Question

A stone is dropped from a tower 100 meters above the ground. The stone falls past ground level and into a well. It hits the water at the bottom of the well 5.00 seconds after being dropped from the tower. Calculate the depth of the well. Given: g = -9.81 meters/second2.

Answer 1

22.5 meters

Step-by-step explanation:

Answer 2

The distance that an object falls from rest in ' T ' seconds is

Distance = (1/2) (gravity) ( T² )

In this question,

Distance = (1/2) (9.81 m/s²) (5.00 s)²

= (4.905 m/s²) (25.0 s²)

= (4.905 x 25) m

= 122.63 meters .

The first 100 meters of fall was from the tower to ground level,
so the distance into the well must be the remaining 22.63 meters.