Question

Friction lab Analysis: 1. HOW I CAN Construct a graph of friction vs Normal force. Can I plot both Static and Kinetic friction on a single Excel Graph and how. 2. How can I use this graph to find the coefficient of static and kinetic friction? (Hint: Think about how we found mass in the Newton’s second law experiment)

Total Mass (kg)	Normal force (N)	Peak static friction (N)	Average Kinetic friction (N)
0.001		0.12	0.07
0.176		0.21	0.14
0.193		0.23	0.15
0.220		0.26	0.17
0.265		0.30	0.2
0.341		0.39	0.27
0.471		0.53	0.34
0.55		0.62	0.41
0.637		0.72	0.49
0.835		0.9	0.65

Answer 1

Static friction Vs Normal force

Kinetic friction Vs normal force