Answered: The crane body (with arm) is 333.3 kg…

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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Question

1)Calculate the velocity of the arm, observed by a stationary person on the ground.
2)Draw the FBD of the combined body (crane body, arm and load).
3)Is the combined body stable? Why?
4)Calculate the moment of the following, about wheel A,i) combined crane bodyii) load mass
5)Which combined body’s component(s) will not fail? Why? (Hint: The crane was initially in equilibrium.)
6)What are the various limits (maximum or minimum) for the combined body to be stable? Explain why.

The crane body (with arm) is 333.3 kg and the red block
is 80kg. The maximum force that the wheels (A & B) and
the arm can take is 4500N and 2000N respectively. The
combined crane body moves at 10 km/h and 0° while
the arm moves 0.1 m/s and 40°
CG of the crane body
X
A
1m
2m
B
1m 1m
3m
Arm
40°
Load
Mass=
80 kg

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