GRAPHS
Attach Pasco graph of angular speed for the 15-cm radius, 20-g mass configuration. Attach Pasco graphs of hanging mass versus mean angular speed
and radius versus mean angular speed
.
SAMPLE CALCULATIONS
For the 20
gram mass, attached when the side post was at a distance of 15.0
cm
from the center post, show the
calculation for the uncertainty for the mean angular speed
σ
ω
=
¿
Experimental mass m calculated
from the trendline of the graph of hanging mass versus angular speed:
m
=
¿
Experimental mass uncertainty
calculated
from the graph’s trendline of hanging mass versus angular speed:
δm
=
¿
Experimental mass m
calculated from the trendline of the graph of radius versus inverse angular speed:
m
=
¿
Experimental mass uncertainty calculated from the trendline of the graph of radius versus inverse angular speed:
δm
=
¿
Percent Difference between the two experimental masses:
PD
=
¿
Lab 5: Centripetal Force
3 of 5