A hoisting system is used to lift the load of 70 kg with an acceleration of 2.0 m/s². The pulley has 380 mm diameter, radius of gyration 30 cm and mass 20 kg. A balancer of 40 kg is attached to the other string. Ignore the friction between rope and pulley. i. ii. iii. Draw the Free Body Diagram of hoisting system. Calculate the tension for each string. Find the torque to operate the system. After 5 seconds, the pulley has a stop. Determine necessary torque brake to stop movement of the load.

A hoisting system is used to lift the load of 70 kg with an acceleration of 2.0 m/s². The pulley has 380 mm diameter, radius of gyration 30 cm and mass 20 kg. A balancer of 40 kg is attached to the other string. Ignore the friction between rope and pulley. i. ii. iii. Draw the Free Body Diagram of hoisting system. Calculate the tension for each string. Find the torque to operate the system. After 5 seconds, the pulley has a stop. Determine necessary torque brake to stop movement of 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 7.60P: The force P applied to the brake handle enables the band brake to reduce the angular speed of a...

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