Determine the minimum downward force to pull up the block. The block weighs W kN. The frictional coefficient between the block and the incline plane is H. The frictional coefficient between the pulley and cable u2. W= 300 + 9b –2c 4 = 0.1+0.01e Hz = 0.05+ 0.01d 120° 30° P

Determine the minimum downward force to pull up the block. The block weighs W kN. The frictional coefficient between the block and the incline plane is H. The frictional coefficient between the pulley and cable u2. W= 300 + 9b –2c 4 = 0.1+0.01e Hz = 0.05+ 0.01d 120° 30° P

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

A = 1

B = 2

C = 3

D = 4

E = 5

Determine the minimum downward force to pull up the block.
The block weighs W KN.
The frictional coefficient between the block and the incline plane is H.
The frictional coefficient between the pulley and cable µz:
W= 300 + 9b - 2c
H = 0.1+0.01e
H2 = 0.05 + 0.01d
120°
30°

Expert Solution

Step 1

Given:

a=1 ,b=2 ,c=3 ,d=4 ,e=5

Weight of the block = W = 300+9b-2c = 312N

Co-efficient of friction between block and cable = 0.1+0.01e = 0.15

Co-efficient of friction between cable and pulley = 0.05+0.01d = 0.09

To Find: Minimum downward force to pull up the block

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