16- nbsp-A crowbar of length 120 cm has its fulcrum nbsp-situated at a distance of 20 cm from the load- nbsp-The mechanical advantage of the crow bar nbsp-is nbsp-1-3-5-7-

Dear Student, mechanical #160;advantage=length #160;of #160;the #160;effort #160;arm #160;length #160;of #160;resistance #160;arm=120 2020=5 ...

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Standard X

Physics

Pulley

16. nbsp;A ...

Question

16. A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load.
The mechanical advantage of the crow bar is

1

3

5

7

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Solution

Dear Student,

$m e c h a n i c a l a d v a n t a g e = \frac{l e n g t h o f t h e e f f o r t a r m}{l e n g t h o f r e s i s \tan c e a r m} = \frac{120 - 20}{20} = 5 R e g a r d s$

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16. A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load. The mechanical advantage of the crow bar is 1 3 5 7

Dear Student, mechanical advantage=length of the effort arm length of resistance arm=120-2020=5 Regards

16. A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load.
The mechanical advantage of the crow bar is

1

3

5

7

Dear Student,

$m e c h a n i c a l a d v a n t a g e = \frac{l e n g t h o f t h e e f f o r t a r m}{l e n g t h o f r e s i s \tan c e a r m} = \frac{120 - 20}{20} = 5 R e g a r d s$