A block is pulled at constant speed along a rough levelsurface by a ropc that makes an angle of 30° withrespect to the horizontal. The applied force along therope is P . The force of kinetic friction between theblock and the surface is 20 N.30°Which one of the following expressions gives themagnitude of the force P in SI units?O 20(sin 30°)O 10(cos 30)O tan 30O 20/(cos 30)O 30/(sin 30°)O O O O O

Given Data The angle is 30 degree The kinetic friction is 20N

À block is pulled at constant speed along a rough level surface by a ropc that makes an angle of 30° with respect to the horizontal. The applied force along the rope is p block and the surface is 20 N. The force of kinetic friction between the 30 Which one of the following expressions gives the magnitude of the force P in SI units? O 20(sin 30) O 10(cos 30") O tan 30° O 20/(cos 30)

À block is pulled at constant speed along a rough level surface by a ropc that makes an angle of 30° with respect to the horizontal. The applied force along the rope is p block and the surface is 20 N. The force of kinetic friction between the 30 Which one of the following expressions gives the magnitude of the force P in SI units? O 20(sin 30) O 10(cos 30") O tan 30° O 20/(cos 30)

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 7.81P: Calculate the horizontal force P required to push the 85-lb lawn mower at constant speed. The center...

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