In which of the following cases of motions, the distance moved and the magnitude of displacement are equal ?
The pendulum is moving to and fro
If the car is moving in circular path
If the car is moving on straight road
The earth is revolving around the Sun
An athlete completes one round of a circular track of diameter $49 \,m$ in $20 \,s$. Calculate the distance covered and displacement at the end of $30 \,s$.
From the given $v -t$ graph (Fig.), it can be inferred that the object is
Define distance and displacement. A body covers one complete revolution around a circular park of circumference $176 \,m$ in $4$ minutes. Find the displacement of the body after $6$ minutes.
A body can have zero average velocity but not zero average speed. Justify.
A body moving with uniform acceleration has velocities $20 \,m s ^{-1}$ and $30\, m s ^{-1}$. when passing two points $A$ and $B$. Then the velocity midway between $A$ and $B$ is