A particle is simultaneously acted upon by two forces of magnitude 3N and 4N. The net force on the particle is:

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Between 1N and 7N

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Solution

The correct option is A Between 1N and 7N
The resultant of two vector $\to A$ and $\to B$ is $\sqrt{A^{2} + B^{2} + 2 A B cos θ}$ . Where, $θ$ is the angle between them. Now $θ$ can vary from 0 to 180 degree which makes the resultant vector to vary from $(A + B)$ to $(A - B)$ . Here, for two forces of magnitude 3N and 4N the net force can vary from $1 N$ to $7 N$ according to the angle between them.

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