Two forces $\vec{F_1}$ and $\vec{F_2}$ act on a particle. $\vec{F_1}$ has a magnitude of 10 N and acts along the positive x-axis. $\vec{F_2}$ has a magnitude of 5 N and acts at an angle of 120° with respect to the positive x-axis. If the resultant force $\vec{R}$ makes an angle $heta$ with $\vec{F_1}$, then $an(heta)$ is:

If the sum of the two unit vectors is also a unit vector, then magnitude of their difference is

If the sum of the two unit vectors is also a unit vector, then magnitude of their difference is

If three vectors acting simultaneously on a particle can be represented in magnitude and direction by the three sides of a triangle taken in order, then the particle will:

The parallelogram law of vector addition is equivalent to which other law for vector addition?

Two vectors $\vec{A}$ and $\vec{B}$ are added using the parallelogram law. If the magnitude of $\vec{A}$ is doubled while keeping the magnitude of $\vec{B}$ and the angle between them constant, how does the magnitude of the resultant vector change?

If the sum of two unit vectors is a unit vector, then magnitude of difference is

Two forces $\vec{F_1}$ and $\vec{F_2}$ act on a particle. $\vec{F_1}$ has a magnitude of 10 N and acts along the positive x-axis. $\vec{F_2}$ has a magnitude of 5 N and acts at an angle of 120° with respect to the positive x-axis. If the resultant force $\vec{R}$ makes an angle $heta$ with $\vec{F_1}$, then $an(heta)$ is:

Two forces, $\vec{P}$ and $\vec{Q}$, act at a point. If the magnitude of their resultant is equal to the magnitude of $\vec{P}$ and perpendicular to $\vec{P}$, and the magnitude of $\vec{Q}$ is $Q$, what is the magnitude of $\vec{P}$?

Two forces represented by vectors 3i + 4j and 5i - 2j act on a particle. What is the magnitude of the resultant force?

Two forces of magnitudes 5 N and 7 N act on a particle at an angle of 60 degrees. According to the parallelogram law of vectors, what is the magnitude of the resultant force?