Motion in a Straight Line

If the instantaneous velocity of a particle is constant, its path must be:

The instantaneous velocity of an object moving in a straight line is zero when:

Instantaneous velocity is also known as:

A person $P$ is moving at $5\text{ km/h}$ and $Q$ is moving at $5\text{ km/h}$ in opposite directions. The relative velocity of $P$ with respect to $Q$ is:

If $v_A = 20\text{ m/s}$ and $v_B = -10\text{ m/s}$, find $v_{AB}$.

Relative velocity of ground with respect to a person running at $5\text{ m/s}$ East is:

For an object starting from rest, the displacement in $3$ seconds is how many times the displacement in $1$ second?

A ball is dropped from a height of $5\ m$. What is its velocity just before hitting the ground? ($g = 10\ m/s^2$)

In a position-time ($x-t$) graph, a parabola opening upwards represents:

A position-time graph that is a straight line parallel to the position axis suggests:

In a $v-t$ graph, a line that slopes downward towards the time axis represents:

If the area of the $v-t$ graph above the time axis is $A_1$ and below the axis is $A_2$, the net displacement is: