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ipn [44]
3 years ago
6

Please help i need to pass this test to pass the class

Mathematics
1 answer:
dangina [55]3 years ago
4 0
The answer is C -1/2.
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When two equal forces are inclined at an angle 2a their resultant is twice as great as
swat32

Step-by-step answer:

Referring to the attached diagram, the resultant of two forces each with magnitude F and inclined to each other at 2a equals

Ra = 2Fcos(a) ..............................(1)

Similarly, the resultant of two forces each with magnitude F and inclined to each other at 2b equals

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Expand

2Fcos(a) = 4Fcos(b)

Simplify

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Note: Please note that you might have a faster response if you posted this question in the physics or the (new) Engineering section.

Have a nice day!

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