Normal Force Dependence Total Block Mass Hanging Mass Normal Force n = Mg (N) m Acceleration (kg) (m/s2) (kg) 0.500 0.634 6.21 2.286 0.500 1.134 11.11 0.715 0.500 1.634 16.01 0.0661 26. Calculate the kinetic frictional force for each trial.

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VI. Does kinetic friction depend on the normal force?
21. Make a prediction. If normal force increases, does the kinetic friction increase,
decrease, or stay the same? Give a reason
r your prediction.
22. Use the Larger Area. Place the larger area of the block on the track. Record the
hanging mass in the data table. Add a 500g rectangular block on top of the wood
block. Change the hanging mass to 500g
23. Run the Experiment. Hang the 500g mass over the pulley. Repeat the
experiment as before.
24. Change the Normal Force. Add a second 500g rectangular block on top of the
block. Record the total mass in the data table. Perform the experiment again.
25. Change the Normal Force Again. Repeat the experiment by adding another
500g rectangular block on top of the block. Record the total mass. If the block
does not move at all or stops after moving a short distance, add more mass to
the hanging mass.
Normal Force Dependence
Total Block
Hanging Mass
Normal Force
n = Mg
(N)
Mass
Acceleration
(kg)
(m/s?)
(kg)
0.500
0.634
6.21
2.286
0.500
1.134
11.11
0.715
0.500
1.634
16.01
0.0661
26. Calculate the kinetic frictional force for each trial.
MacBook Pro
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Transcribed Image Text:VI. Does kinetic friction depend on the normal force? 21. Make a prediction. If normal force increases, does the kinetic friction increase, decrease, or stay the same? Give a reason r your prediction. 22. Use the Larger Area. Place the larger area of the block on the track. Record the hanging mass in the data table. Add a 500g rectangular block on top of the wood block. Change the hanging mass to 500g 23. Run the Experiment. Hang the 500g mass over the pulley. Repeat the experiment as before. 24. Change the Normal Force. Add a second 500g rectangular block on top of the block. Record the total mass in the data table. Perform the experiment again. 25. Change the Normal Force Again. Repeat the experiment by adding another 500g rectangular block on top of the block. Record the total mass. If the block does not move at all or stops after moving a short distance, add more mass to the hanging mass. Normal Force Dependence Total Block Hanging Mass Normal Force n = Mg (N) Mass Acceleration (kg) (m/s?) (kg) 0.500 0.634 6.21 2.286 0.500 1.134 11.11 0.715 0.500 1.634 16.01 0.0661 26. Calculate the kinetic frictional force for each trial. MacBook Pro F2 F3 F4 F5 DII DD F7 F8 F9 @ F10 #3 $ & 2 3 4 7 8 9 E Y S w/
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