Question

Two forces whose
magnitudes are in the ratio
3:5 give
a result of
of 35N.
If the angle
between them is 60', the magnitude
angle
each
force is?
​

Answer 1

Answer:

15N,25N

Explanation:

Using cosine law and assuming the forces to be of magnitudes 3x and 5x,

c=

a

2

+b

2

+2abcosθ

35=

34x

2

+15x

2

therefore x=35/7=5.

Forces are thus equal to 15 N and 25 N.