Question
Asked Nov 11, 2019
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1. A block of mass m = 5.0 kg is pulled along a horizontal floor or up the ramp by a force of magnitude F = 50 N
The coefficient of kinetic friction between the block and surface is 0.15 and the magnitude of the angle 0 25.0°.
(a) Make a free-body diagram of the block for each case
(b) Calculate the magnitude of the normal force and kinetic friction force for each case
(c) Calculate the acceleration of the block.
F
М
ө
ө
|м
ө
Case 1
Case 2
Case 3
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1. A block of mass m = 5.0 kg is pulled along a horizontal floor or up the ramp by a force of magnitude F = 50 N The coefficient of kinetic friction between the block and surface is 0.15 and the magnitude of the angle 0 25.0°. (a) Make a free-body diagram of the block for each case (b) Calculate the magnitude of the normal force and kinetic friction force for each case (c) Calculate the acceleration of the block. F М ө ө |м ө Case 1 Case 2 Case 3

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Expert Answer

Step 1

(a)The free body diagram of each  mass are shown below.

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Faro N A Oftese >Fuso ng F sm

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Step 2

(b)For  case I,II, and III  the nor...

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case I N-mgFsin (5.0kg)(9.8m/s2)+ (50N) sin 25 70 N (0.15)(70N) 10.5N case II NI-mg-Fsin e (5.0kg)(9.8m/s2)-(50N) sin 25° -28N (0.15) (28N) -42N case III (5.0kg)(9.8m/s) cos2 5° -44.6N (0.15)(44.6 N) 6.7 N

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