I had read this Formula Somewhere,

That If Two Forces act at An angle theta, The resultant Force is

\(\sqrt{{a}^{2}+{b}^{2}-2 Cos Theta}\)

Is it Correct? Also, I want to Know, If a force acts At an Angle Theta From horizontal, What is the Resultant Force?

Kindly Provide me With the Formulas. I shall study Further From the Wiki. Thanks!

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TopNewestIt is \( \sqrt{a^2 + b^2 + 2ab\cos(\theta)} \), where \( \theta \) is the angle between the two vectors.

Edited for clarity. – Siddhartha Srivastava · 2 years, 2 months ago

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– Mehul Arora · 2 years, 2 months ago

Between The root of the Two vectors means? Can you give an example?Log in to reply

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While the angles in the pic below this is wrong. Notice how the vectors don't have the same starting points in the example below.

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– Mehul Arora · 2 years, 2 months ago

Okay! If a force acts At an Angle Theta From horizontal, What is the Resultant Force?Log in to reply

– Siddhartha Srivastava · 2 years, 2 months ago

If there is exactly one force, then the resultant force would be equal to the force itself.Log in to reply

@Siddhartha Srivastava – Mehul Arora · 2 years, 2 months ago

I got it. Thanks For your helpLog in to reply