3B SCIENTIFIC PHYSICS 1006785 Instructions D'utilisation page 7

•
Calculate the angular acceleration as in 5.1
•
Calculate the theoretical torque as in 5.2
•
The moment of inertia is given by the equa-
tion:
τ
=
I
α
•
Repeat the experiment, keeping the mass
on the crossbar fixed and varying the dis-
tance.
•
Plot inertia versus distance.
•
Repeat the experiment, but this time keep
the distance fixed and vary the mass on the
rod and plot inertia versus mass.
You should find that the moment of inertia varies
accoring to the equation
2
I =
MR
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