Question

34. CONSTRUCTION A construction worker is working on the roof of a

Answer 1

Answer:

t = 6.77 s

Step-by-step explanation:

Given that,

A drop of paint falls from a rafter that is 225 feet above the  ground.

We need to find the time when the paint hit the ground. Let the time be t.

Using the second equation of kinematics i.e.

$s=ut+\dfrac{1}{2}at^2$

Where

u = 0 (initial velocity is 0 as it was at rest)

a = g

So,

$225=\dfrac{1}{2}\times 9.8t^2\\\\t=\sqrt{\dfrac{2\times 225}{9.8}} \\\\t=6.77\ s$

So, it will hit the ground at 6.77 s.