Q3/ A screw-jack is used to lft a load of 4 kN. The screw of the screw-jack is square threaded with two threads to 1 cm. If the co-efficient of friction between the nut and screw is 0,095 and outer diameter of screw s 6 cm, find the force required atthe end of the handle of length 50 cm to ift the load. (20 M) Q3/ A screw-jack is used to lift a load of 4 kN. The screw of the screw-jack issquare threaded with two threads to 1 cm. If the co-efficient of friction between thenut and screw is 0.095 and outer diameter of screw is 6 cm, find the force requiredat the end of the handle of length 50 cm to lift the load.(20 M)

This question is based on the screw jack. A screw jack is used to lift the heavy load with small…

A screw-jack is used to lft a load of 4 kN. The screw of the screw-jack is square threaded with two threads to 1 cm. If the co-efficient of friction between the nut and screw is 0,095 and outer diameter of screw s 6 cm, find the force required atthe end of the handle of length 50 cm to ift the load.

A screw-jack is used to lft a load of 4 kN. The screw of the screw-jack is square threaded with two threads to 1 cm. If the co-efficient of friction between the nut and screw is 0,095 and outer diameter of screw s 6 cm, find the force required atthe end of the handle of length 50 cm to ift the load.

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 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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