Question

Which of the following sets of concurrent forces may be in equilibrium ? [KCET-2000]
(1) F1 = 3N, F2 = 5N, F3 = 1N
(2) F1 = 3N, F2 = 5N, F3 = 9N
(3) F1 = 3N, F2 = 5N, F3 = 6N
(4) F1 = 3N, F2 = 5N, F3 = 15N​

Answer 1

Answer:

11th

Physics

Motion in a Plane

Mathematical Operations on Vectors

Which of the following sets...

PHYSICS

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Asked on December 20, 2019 by

Brijal Basant

Which of the following sets of concurrent forces may be in equilibrium?

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ANSWER

According to the triangle law of forces, resultant of given forces, sum of any two forces is greater than or equal to the third force.

Case A: F

1

+F

3

<F

2

......cannot be in equilibrium

Case B: F

1

+F

2

<F

3

......cannot be in equilibrium

Case D: F

1

+F

2

<F

3

......cannot be in equilibrium

Case C: F

1

+F

2

≥F

3

; F

1

+F

3

≥F

2

; F

3

+F

2

≥F

1

Only case C is following the required criteria.

Answer 2

4) F1 = 3N, F2 = 5N, F3 = 15N