The SI unit of resultant velocity is $\mathrm{m} {\mathrm{s}}^{-2}$.

The displacement-time graphs of two moving particles make angles of $30°$ and $45°$ with the $x$-axis as shown in the figure. The ratio of their respective velocity is:

A particle shows the distance-time curve as shown in the figure. The maximum instantaneous velocity of the particle is around the point.

In $1.0 \mathrm{s},$ a particle goes from $A \mathrm{to} B$ moving in a semicircle of $1.0 \mathrm{m}$ radius (as shown in the figure)

The magnitude of the average velocity is

A particle moves rectilinearly possessing a parabolic $s-t$ graph. Find the average velocity of the particle over a time interval from $t=\frac{1}{2} \mathrm{s}$ to $t=1.5 \mathrm{s}$.

A particle can travel from point $A$ to $B$ from two different paths $1$ and $2$ as shown, in same interval of time. Then, which of the following is incorrect?

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$