Newton’s Second Law
How does a cart change its motion when you push and pull on it? You might think that the harder you push on a cart, the faster it goes. Is the cart’s velocity related to the force you apply? Or doesthe force just changethe velocity? Also, what does the mass of the cart have to do with how the motion changes? We know that it takes a much harder push to get a heavy cart moving than a
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Figure 1
OBJECTIVES
Collect force and acceleration data for a cart as it is moved back and forth.
Compare force
vs
. time and acceleration
vs
. time graphs.
Analyze a graph of force
vs
. acceleration.
Determine the relationship between force, mass, and acceleration.
MATERIALS
computer
Vernier Force Sensor
Vernier computer interface
low-friction dynamics cart
Logger
Pro
0.500 kg mass
Vernier Low-g Accelerometer
PROCEDURE
1.
Connect a Dual-Range Force Sensor to Channel 1 on the Vernier computer interface. Connect
the Low-g Accelerometer to
Channel 2
on the interface.
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- Spring '12
- palma
