Question

Two pull F1 =80 N; and F2 acts on a body. The resultant R is a pull of 120 N inclined at 60 degree to F1. Find magnitude of forces.

Answer 1

Answer:

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Explanation:

Given that,

Two forces F

1

and F

2

=5N

Angle θ=60

0

We know that, the resultant force is

∣F∣=∣F

1

∣+∣F

2

∣

∣F∣=

F

1

2

+F

2

2

+2F

1

F

2

cosθ

∣F∣=

(5)

2

+(5)

2

+2×5×5×

2

1

∣F∣=

75

∣F∣=8.66N

Hence, the resultant force acting on the body is 8.66 N