Physics, asked by jagadeesanvetr3154, 1 year ago

​let the resultant of three forces of magnitude 5 n, 12 n and 13 n acting on a body be zero.if sin23=5/13 find the angle between the 5 n force and 13n force.

Answers

Answered by apexabroadstu
1

Answer:

90-23=67

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Answered by amitnrw
6

the angle between the 5 n force and 13n force. = 113°

Explanation:

the angle between the 5 n force and 13n force. = α

5²  + 13² + 2(5)(13)Cosα  =  12²

=> 25 + 169 +2(5)(13)Cosα  =  144

=>  2(5)(13)Cosα  =  - 50

=> Cosα  = -5/13

Sinβ= - Cos(90 + β)

sin23°=5/13  

=> -Cos 113°  = 5/13

=> Cos 113°  = -5/13

α  = 113°

the angle between the 5 n force and 13n force. = 113°

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