Question

7. A stone is dropped down a deep well from rest. The well is 50m deep. How long
will it take to reach the bottom of the well?
Given a = 9.8m/s2​

Answer 1

Answer:3.2 seconds

Explanation:

Answer 2

Answer:

10sec

Explanation:

from the eq.

s = ut+1/2at² ----(2 eq)

50 = 0(t) + 1/2(9.8)(t)

50 = 4.9t

t = 50/4.9

t = 10.2sec

t = 10 sec (approx.)