very urgent The uniform 90-kg crate C rests on a 18-kg dolly D. Center of gravity of the dolly is at the midpoint of AB. The crate is fixed on the dolly to prevent slippingon the dolly. The coefficient of static friction between the wheels and the floor ms= 0.30 and the coefficient of kinetik friction between the wheels and thefloor mk= 0.20If the rerar wheels of the dolly at B are locked to prevent rolling while the wheel at A are free to rolla. Calculate the magnitude of P in Newton just to initiate motion. (equilibrium condition)b. Calculate the magnitude of P in Newton to maintain the motionF0.6 mP.1,6 m0,7 m0,3 mOBA0,35 m1,6 m

Mass of crate C, mC= 90 kg Mass of dolly D, mD= 18 kg Coefficient of static friction between wheel…

Answered: 0.6 m- P- 1,6 m 0,7 m 0,3 m B A 0,35 m…

Engineering

Mechanical Engineering

0.6 m- P- 1,6 m 0,7 m 0,3 m B A 0,35 m 1,6 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

very urgent

The uniform 90-kg crate C rests on a 18-kg dolly D. Center of gravity of the dolly is at the midpoint of AB. The crate is fixed on the dolly to prevent slipping
on the dolly. The coefficient of static friction between the wheels and the floor ms= 0.30 and the coefficient of kinetik friction between the wheels and the
floor mk= 0.20
If the rerar wheels of the dolly at B are locked to prevent rolling while the wheel at A are free to roll
a. Calculate the magnitude of P in Newton just to initiate motion. (equilibrium condition)
b. Calculate the magnitude of P in Newton to maintain the motion
F0.6 m
P.
1,6 m
0,7 m
0,3 m
OB
A
0,35 m
1,6 m

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