If the coefficient of kinetic friction is 0.2, what friction of the total mechanical energy is...

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Question

Physics

If the coefficient of kinetic friction is 0.2, what friction ofthe total mechanical energy is lost due to frictional forces?
Run#
Mass of hanger + weights (M)
mass of glider +flag (m)
velocity of glider (v)
d (m)Â Â
potential energy lost (Mgd) (J)
Kinetic energy gained 1/2 (m+M)v²
% change (ME)
1
0.05
0.2118
0.88
0.235
0.1152675
0.10136896
12.05763984
2
0.07
0.2118
1.01
0.235
0.1613745
0.14373209
10.93258848
3
0.09
0.2118
1.12
0.235
0.2074815
0.18928896
8.768270906
4
0.11
0.2118
1.2
0.235
0.2535885
0.231696
8.633080759
5
0.13
0.2118
1.26
0.235
0.2996955
0.27132084
9.467829847
6
0.15
0.2118
1.34
0.235
0.3458025
0.32482404
6.066601601

Answer & Explanation Solved by verified expert

4.0 Ratings (589 Votes)

Frictional force is due to the weight of the glider frictionalforce is given by F mg02For Run 1 Frictional force mg 02 02118 98 0415128 NEnergy See Answer

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Run#	Mass of hanger + weights (M)	mass of glider +flag (m)	velocity of glider (v)	d (m)Â Â	potential energy lost (Mgd) (J)	Kinetic energy gained 1/2 (m+M)v²	% change (ME)
1	0.05	0.2118	0.88	0.235	0.1152675	0.10136896	12.05763984
2	0.07	0.2118	1.01	0.235	0.1613745	0.14373209	10.93258848
3	0.09	0.2118	1.12	0.235	0.2074815	0.18928896	8.768270906
4	0.11	0.2118	1.2	0.235	0.2535885	0.231696	8.633080759
5	0.13	0.2118	1.26	0.235	0.2996955	0.27132084	9.467829847
6	0.15	0.2118	1.34	0.235	0.3458025	0.32482404	6.066601601