Q 3(a) A block of weight 800N is attached to a string which passes over a smooth pulley. When a weight of W = 200 N is attached to the string as shown in Figure Q3(a), the block is on the point of moving. Perform the following; (i) draw free body diagram; (ii) determine the coefficient of friction; (ii) normal force; (iv) frictional force. Pulley 40° 800N W Figure Q3(a) (b) If the angle of inclination of the string connecting pulley and the block is decreased, explain its effect on normal force and frictional force, assuming the weight of the block remains same. Refer to Figure Q3(a).

Q 3(a) A block of weight 800N is attached to a string which passes over a smooth pulley. When a weight of W = 200 N is attached to the string as shown in Figure Q3(a), the block is on the point of moving. Perform the following; (i) draw free body diagram; (ii) determine the coefficient of friction; (ii) normal force; (iv) frictional force. Pulley 40° 800N W Figure Q3(a) (b) If the angle of inclination of the string connecting pulley and the block is decreased, explain its effect on normal force and frictional force, assuming the weight of the block remains same. Refer to Figure Q3(a).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

Q 3(a) A block of weight 800N is attached to a string which passes over a
smooth pulley. When a weight of W = 200 N is attached to the string as
shown in Figure Q3(a), the block is on the point of moving. Perform the
following;
(i)
draw free body diagram;
(ii)
determine the coefficient of friction;
(ii)
normal force;
(iv)
frictional force.
Pulley
40°
800N
Figure Q3(a)
(b)
If the angle of inclination of the string connecting pulley and the block is
decreased, explain its effect on normal force and frictional force,
assuming the weight of the block remains same. Refer to Figure Q3(a).

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