7. A compound lever as shown below. Find the effort P. if the system is used to lift a mass of800kg. (10)S00 mam400 mm350 mmS0mm800 kg8. An oil drum 600mm in diameter and length Im is to be rolled over a step 120mm in height.Find the least pull through the centre of the drum required just to turn the drum over thestep. Also find the reaction on the step. Assuming all the surfaces to be smooth. Take densityof oil as 1 kg/litre and neglecting weight of the drum. (10)50 mm

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the system is used to lift à mass of A compound lever as shown below. Find the effort 800kg. (10) 500 mm 400 mm 350 mm Smm NO0 kg S0 mm

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter10: Virtual Work And Potential Energy

Section: Chapter Questions

Problem 10.62P: The bar ABC is supported by three identical, ideal springs. Note that the springs are always...

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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

7. A compound lever as shown below. Find the effort P. if the system is used to lift a mass of
800kg. (10)
S00 mam
400 mm
350 mm
S0mm
800 kg
8. An oil drum 600mm in diameter and length Im is to be rolled over a step 120mm in height.
Find the least pull through the centre of the drum required just to turn the drum over the
step. Also find the reaction on the step. Assuming all the surfaces to be smooth. Take density
of oil as 1 kg/litre and neglecting weight of the drum. (10)
50 mm

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