Q 3(a) smooth pulley. When a weight of W = 200 N is attached to the string as A block of weight 800N is attached to a string which passes over a shown in Figure Q3(a), the block is on the point of moving. Perform the following; (1) draw free body diagram; [3] (ii) determine the coefficient of friction; [7] (ii) normal force; [3] (iv) frictional force. [3] Pulley 40° 800N W

Q 3(a) smooth pulley. When a weight of W = 200 N is attached to the string as A block of weight 800N is attached to a string which passes over a shown in Figure Q3(a), the block is on the point of moving. Perform the following; (1) draw free body diagram; [3] (ii) determine the coefficient of friction; [7] (ii) normal force; [3] (iv) frictional force. [3] Pulley 40° 800N W

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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Q1/ An open belt drive connected two pulleys 120 cm and 50 cm diameter on parallel shafts 4 m apart. The belt weights 0.9 kg/m length and maximum tension in it is not to exceed 2000 N. 0.3. The 120 cm pulley, which is the driver, runs at 200 rpm. Due to belt slip on one of the pulleys, the velocity of the driven shaft is only 450 rpm. Calculate the torque on each of the two shafts and power transmitted.
Q 3(a) A block of weight 1 kN is attached to a string which passes over a smooth pulley. When a weight of W = 500 N is attached to the string as shown in Figure Q3(a), the block is on the point of moving. Perform the following; (1) draw free body diagram; (ii) determine the coefficient of friction; (ii) normal force; (iv) frictional force. Pulley 50° 1 kN W Figure Q3(a) (b) If the angle of inclination of the string connecting pulley and the block is increased, 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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