Below are data from a series of trials balancing an object that is hung from
one end of a meter stick by moving the
pivot point and letting the torque due to
the force of gravity on the meter stick
hold the system in equilibrium. The
location of the pivot point is measured
from the center of mass of the meter
stick. The meter stick used has a mass
of 125 g and is perfectly uniform, with its
center at the 50.0 cm mark.
1 meter
The mass of the object, measured by a
digital scale, is 217 g. Over the next few
questions, we are going to determine if
the average mass of the object, based
on the experimental trials, is in
agreement with the mass as measured
with a digital scale.
Remember that "agreement" in this case
refers to the measured value being
within a range of +2A, where Az is the
standard uncertainty, of the calculated
mean.
r(m)
0.319
Trial 1
Trial 2
Trial 3
Trial 4
Trial 5
0.304
0.319
0.313
0.326

do you have a formula possibly

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

1 is a answer of a question