1. using the results from pre-lab question 2 (us=tan0) calculate the coefficient
ID: 1777607 • Letter: 1
Question
1. using the results from pre-lab question 2 (us=tan0) calculate the coefficient of friction for each angle in table 1 and table 2. find the average value for the coefficient of friction for wood and metal on cardboardLab+4+Friction Microsoft Word Add-Ins Acrobat Title SubtitleSubtle Emp Emphasis IntenseE Normal No acing Heading Heading styles Trial 1 (N) 1.4N 1.6N 3.0N Trial 2 (N) 1.ON 2.4N 2.8N Trial 3 (N) 1.2N 2.0N 3.0N Average (N) 1.1N 2.ON 2.9N (kg) 500 kg 750 kg 1 kg Table 4: Kinetic Frictional Force Total Mass Average (N) 1.ON Trial 1 (N) Trial 2 (N) Trial 3 (N) (kg) 500 g 1.ON straighterline Lab 4 Friction PHY250L L&N; 2.0N 50kg 1.6N 1.8N 2.1N 1kg2.2N Table 6: Kinetic Frictional Force Average Applied Normal Force (N) Table 5: Static Frictional Force Average Appliled Normal Force (N) Force (N) 1.1N 2.0N Click here enter text. Click here t enter text Click here to 1.ON 1.7N 2.1N Click here to enter text Click here to enter text Click here to enter tex 2.9N
Explanation / Answer
Table 1 and 2 are missing. Howevere, here are the steps to calculate normal force.
Normal force acts perpendicular to the surface and the normal force is equal to mg*cos(theta) in case of inclined planes and normal force is equal to mg in case of horizontal plane.
To find the normal force due to static friction.
Ff = ustatic*FN
where, Ff is the force of friction , us is the coefficient of statci friction and FN is the normal force.
therefore, we can write this as FN = Ff / ustatic
In the same way, we can find the normal force due to kinetic friction. Just consider kinetic friction in place of static friction.
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