A body moves on three quarters of a circle of radius $r .$ The displacement and distance travelled by it are

  • A

    displacement $=r,$ distance $=3 r$

  • B

    distance $=2 r,$ displacement $=\frac{3 \pi r}{2}$

  • C

    displacement $=\sqrt{2} r,$ distance $=\frac{3 \pi r}{2}$

  • D

    displacement $=0,$ distance $=\frac{3 \pi r}{2}$

Similar Questions

A person standing at $A$ goes to $B$ by following any of the paths $1,2$ or $3 .$ Which path we can measure to find the average velocity ?

A cyclist driving at $36\, km h^{-1}$ stops his cycle in $2\, s$ by the application of brakes. Calculate $(i)$ retardation $(ii)$ distance covered during the application of brakes.

State the meaning of uniform circular motion.

The distance$-$time graph of two trains are given below. The trains start simultaneously in the same direction.

$(i)$ How much ahead of $A$ is $B$ when the motion starts ?

$(ii)$ What is the speed of $B$ ?

$(iii)$ When and where $A$ will catch $B$ ?

$(iv)$ What is the difference between the speeds of $A$ and $B$ ?

$(v)$ Is the speed of either trains uniform or non uniform ? Justify your answer.

In your everyday life, you come across a range of motions in which

$(a)$ acceleration is in the direction of motion.

$(b)$ acceleration is against the direction of motion.

$(c)$ acceleration is uniform.

$(d)$ acceleration is non$-$uniform.

Can you identify one example each of the above type of motion ?