The 381-N force is applied to the 83-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force Fexerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left.

The 381-N force is applied to the 83-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force Fexerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.17P: The two uniform sheets of plywood, each of length L and weight W, are propped as shown. If the...

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Question

The 381-N force is applied to the 83-kg block, which is stationary before the force is applied. Determine the magnitude and direction
of the friction force Fexerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left.
P = 381 N
21°
H, =
= 0.58
H= 0.42
%3D
Answer: F =

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