Posterous theme by Cory Watilo

1.25 Answers

 

 1.25 Principle of Moments Questions 

29 September 2010

14:37

 

Size of load (tonnes)

Size of load (N)

Maximum length of jib (m)

Moment (load x length)

10

100,000

12

1,200,000

20

200,000

6

1,200,000

30

300,000

4

1,200,000

40

400,000

3

1,200,000

 

5b) All of the moments are the same, this is because the highest moment the crane can extend to is 1,200,000.

c.  M= F x d, M=1,200,000, d=24m, F= 1,200,000/24, F=50,000N

 

4a) X=20N

b) Y=4N

c) Z=1N

 

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