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Two forces whose magnitudes are in …

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Two forces whose magnitudes are in ratio 3:5 give a resultant of 35Newton.If the angle of incilation be 60 degree,calculate the magnitude of each other.
  • 2 answers

Sukriti Das 4 years, 3 months ago

Thanku...?

Gaurav Seth 4 years, 3 months ago

 

Let us suppose the first force to be 3x and the other force to be 5x.

Now resultant can be given by sqrt [a*a + b*b + 2abcos(angle between a and b)]

so in this case the resutant becomes = sqrt [9x*x + 25x*x + 15x*x] = 35 N it is given

 

hence, 7x = 35

hence x = 5

so the values of the forces are 15N and 25N

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