**47. The crane shown in thePulley-drawing is lifting a 180-kgcrate upward with an accel-eration of 1.2 m/s². The cablefrom the crate passes over asolid cylindrical pulley at thetop of the boom. The pulley hasa mass of 130 kg. The cable isthen wound onto a hollow cy-DrumBoomlindrical drum that is mountedon the deck of the crane. The mass of the drum is 150 kg, and its radiusis 0.76 m. The engine applies a counterclockwise torque to the drum inorder to wind up the cable. What is the magnitude of this torque? Ignorethe mass of the cable.

The expression for the torque in respect to the engine is given by,

Answered: **47. The crane shown in the Pulley-…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter9: Statics And Torque

Section: Chapter Questions

Problem 17PE: To get up on the roof, a person (mass 70.0 kg) places a 6.00-m aluminum ladder (mass 10.0 kg)...

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