Table 5-1 some representative values of us and uk Surface Rubber on dry 1.0 0.8 concrete Glass on glass 0.9~1.0 0.4 Steel on steel 0.6 0.6 Wood on wood 0.25~0.5 0.2 Waxed wood ski 0.04 0.004 on dry snow
Surface Rubber on dry concrete 1.0 0.8 Glass on glass 0.9 ~ 1.0 0.4 Steel on steel 0.6 0.6 Wood on wood 0.25 ~ 0.5 0.2 Waxed wood ski on dry snow 0.04 0.004 s k Table 5-1 some representative values of and . k s
Sample problern 5-10 Repeat Sample Problem 5-7, taking into account a frictional force between block 1(m1) and the plane. Use the values 4. 0.24 and Ak=0.15. Find the acceleration of the blocks and the tension in the string m1=9.5Kg m2=2.6Kg 6=34° m2
Sample problem: 5-10 Repeat Sample Problem 5-7, taking into account a frictional force between block 1 (m1 ) and the plane. Use the values =0.24 and =0.15. Find the acceleration of the blocks and the tension in the string. s k m2 m1 = 9.5 Kg m2=2.6 Kg = 34