Question

two equal forces have their resultant equal to either.what is the inclination between them​

Answer 1

Answer:

Let ? be the angle between the two vectors A and B such that, |A| = |B|.

Let ? be the angle between the two vectors A and B such that, |A| = |B|.Therefore,

Let ? be the angle between the two vectors A and B such that, |A| = |B|.Therefore,R 2 = A 2 + B 2 + 2AB cos?

Let ? be the angle between the two vectors A and B such that, |A| = |B|.Therefore,R 2 = A 2 + B 2 + 2AB cos?=> A 2 = A 2 + A 2 + 2(A)(A) cos? [since, |A| = |B| = |R|]

Let ? be the angle between the two vectors A and B such that, |A| = |B|.Therefore,R 2 = A 2 + B 2 + 2AB cos?=> A 2 = A 2 + A 2 + 2(A)(A) cos? [since, |A| = |B| = |R|]=> A 2 = 2A 2 + 2A 2 cos?

Let ? be the angle between the two vectors A and B such that, |A| = |B|.Therefore,R 2 = A 2 + B 2 + 2AB cos?=> A 2 = A 2 + A 2 + 2(A)(A) cos? [since, |A| = |B| = |R|]=> A 2 = 2A 2 + 2A 2 cos?=> cos? = -1/2

Let ? be the angle between the two vectors A and B such that, |A| = |B|.Therefore,R 2 = A 2 + B 2 + 2AB cos?=> A 2 = A 2 + A 2 + 2(A)(A) cos? [since, |A| = |B| = |R|]=> A 2 = 2A 2 + 2A 2 cos?=> cos? = -1/2=> ? = 120 0

Answer 2

Answer:

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