Question

a stone is dropped from rest from a top of a building 44.1 meter high it take 3 seconds to reach the ground.find g​

Answer 1

Answer:

Initial velocity(u ) = 0

using formula for displacement in t th second

⇒ 44.1 = 1/2 x 9.8  (2t-1)

⇒(44.1 x 2)9.8 + 1 = 2t

⇒10/2 = t

⇒t = 5 sec

so using equation

⇒s = 0 + 1/2 x 9.8 x (5)²

⇒s = 4.9 x 25

⇒s = 122.5 m

so total height = 122.5

Explanation:

Answer 2

Explanation:

g will be the gravitational force exerted by earth to attract the stone and will be 9.8 m/sec