1. Force on cart lab
And you

2. Purpose: To provide evidence for Newton’s law that:
Force = ∑ mass (acceleration)

3. The process of data collection
Force = ∑ mass (acceleration)
All masses
In Kg!!!!
F = mg
F1 = (mass of hanger and 1 nut) (9.8)
Mass of cart, all 6 nuts,
and hanger
a1: Measured by computer (~ 1.5 m/s/s)
F2 = (mass of hanger and 2 nuts) (9.8)
Stays the same because
You just moved some Mass
from the cart to the hanger
a2: Measured by computer with a value greater
Than that in a1
F3 = (mass of hanger and 3 nuts) (9.8)
Stays the same
a3: Measured by computer with a value greater
Than that in a2
Repeat 2 more times

4. What about the graph? Force (N) N = kg (m/s/s) Slope = F = kg (m/s/s)
a (m/s/s)
= Kg
Acceleration (m/s/s)

5. THEREFORE:
The slope of the graph represents the ∑mass of the cart, nuts, and hanger (in kg)
So if your slope value is close to your ∑mass value, then you have provided support for newton’s F = ma law!!!
Do not forget to do a percent error calculation that compares your slope value to your measured ∑mass value.
Thank you – now please go to the computer lab to type up your report