When $n$ vectors of different magnitudes are added, we get a null vector. Then the value of $n$ cannot be
$11$
$4$
$3$
$2$
If two forces of equal magnitudes act simultaneously on a body in the east and the north directions then
If vectors $P, Q$ and $R$ have magnitude $5, 12$ and $13 $ units and $\overrightarrow P + \overrightarrow Q = \overrightarrow R ,$ the angle between $Q$ and $R$ is
Which of the following quantity/quantities are dependent on the choice of orientation of the co-ordinate axes?
$(a)$ $\vec{a}+\vec{b}$
$(b)$ $3 a_x+2 b_y$
$(c)$ $(\vec{a}+\vec{b}-\vec{c})$
While travelling from one station to another, a car travels $75 \,km$ North, $60\, km$ North-east and $20 \,km $ East. The minimum distance between the two stations is.......$km$
The vector sum of two forces is perpendicular to their vector differences. In that case, the forces