Question

two forces whose magnitude are at the ratio of 3:5 give a resultant of 35N .If the angle of inclination is 60 .find magnitude of each force

Answer 1

Let a be constant in forces.

That is 3a : 5a

Applying the formula,

35² = (3a)² + (5a)² + 2(3a)(5a)cos60°

1225 = 34a² + 15a²

1225 = 49a²

1225/49 = a²

[35/7]² = a²

5² = a²

5 = a

So forces are 3a = 15 N
and 5a = 25 N


Thank you too much.

Answer 2

Answer is 25 N

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full answer refer to attachment