Answer:
<h3>The answer is 8.2 kg</h3>
Explanation:
The mass of the object can be found by using the formula

f is the force
a is the acceleration
From the question we have

We have the final answer as
<h3>8.2 kg</h3>
Hope this helps you
Answer:
The time is 0.90 sec.
Explanation:
Given that,
Height = 4.00 m
We need to calculate the time
Using equation of motion

For free fall, u = 0

Where, s = distance
g = acceleration due to gravity
t = time
Put the value into the formula


Hence, The time is 0.90 sec.
Anthropology
Hope this helps! ^-^
Superconductor, conductor, semiconductor, insulator