Question
Classify the following as scalar and vector quantities:
Work.

Answer

Work done is a scalar quantity as it involves only magnitude.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

If $\text{A}=\begin{pmatrix} \cos\alpha & -\sin\alpha \\ \sin\alpha & \cos\alpha \\ \end{pmatrix}$, then for what value $\alpha$ of is A an identity matrix?
Find the values of x, y, and z from the following equation:
$\left[\begin{array}{ll} {4} & {3} \\ {x} & {5} \end{array}\right]=\left[\begin{array}{ll} {y} & {z} \\ {1} & {5} \end{array}\right]$
If the matrix $\text{A}=\begin{bmatrix}0 & \text{a} & -3 \\2 & 0&-1\\\text{b}&1&0 \end{bmatrix}$ is skew symmetric, find the values of ‘a’ and ‘b’.
Find $\int \frac{\sin 2 x \cos 2 x d x}{\sqrt{9-\cos ^{4}(2 x)}}$
Find the value of $k$ so that the function $f$ is continuous at the indicated point:
$f(x)=\left\{\begin{array}{c}k x^2, \text { if } x \leq 2 \\ 3, \text { if } x>2\end{array}\right.$ at $x=2$.
$\text{If}\ \text{P}(\text{A})=0.8,\ \text{P}(\text{B})=0.5\ \text{and}\ \text{P}(\text{B}|\text{A})=0.4,\ \text{find}:$
$\text{P}(\text{A}\cup\text{B})$
If a machine is correctly set up, it produces $90\%$ acceptable items. If it is incorrectly set up, it produces only $40\%$ acceptable items. Past experience shows that $80\%$ of the set ups are correctly done. If after a certain set up, the machine produces $2$ acceptable items, find the probability that the machine is correctly setup.
Find the length of foot of perpendicular from the point $(1,2,3)$ on plane $\vec{r} \cdot(\hat{i}+\hat{j}+\hat{k})=5$.
$\text{If}\begin{pmatrix} 1 & 2 \\ 3 & 4 \\ \end{pmatrix}\begin{pmatrix} 3 & 1 \\ 2 & 5 \\ \end{pmatrix}=\begin{pmatrix} 7 & 11 \\ \text{k} & 23 \\ \end{pmatrix}, $then write the value of k.
Find the differential equation representing the family of curves $\text{v} = \frac{\text{A}}{\text{r}} + \text{B},$ where A and B are arbitrary constants.