College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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•9 0 A 3.5 kg block is pushed
along a horizontal floor by a force
F of magnitude 15 N at an angle
e = 40° with the horizontal
(Fig. 6-19). The coefficient of ki-
netic friction between the block
Flg. 6-19
Problems 9 and 32.
and the floor is 0.25. Calculate the
magnitudes of (a) the frictional
force on the block from the floor
and (b) the block's accelération.
•10 Figuré 6-20 shows an initially.
stationary block of mass m on a
floor. A force of magnitude
0.500mg is then applied at upward
angle e= 20°. What is the magni-
tude of the acceleration of the
Flg. 6-20 Problem 10.
www.
block across the floor if the friction coefficients are (a) u, = 0.600
and u = 0.500 and (b) , = 0.400 and 4
0.300?
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Transcribed Image Text:•9 0 A 3.5 kg block is pushed along a horizontal floor by a force F of magnitude 15 N at an angle e = 40° with the horizontal (Fig. 6-19). The coefficient of ki- netic friction between the block Flg. 6-19 Problems 9 and 32. and the floor is 0.25. Calculate the magnitudes of (a) the frictional force on the block from the floor and (b) the block's accelération. •10 Figuré 6-20 shows an initially. stationary block of mass m on a floor. A force of magnitude 0.500mg is then applied at upward angle e= 20°. What is the magni- tude of the acceleration of the Flg. 6-20 Problem 10. www. block across the floor if the friction coefficients are (a) u, = 0.600 and u = 0.500 and (b) , = 0.400 and 4 0.300?
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