Describing Motion

An ant travels from P to Q and then moves from Q to R (as shown in the diagram). Show its resultant displacement in the diagram.

A person moves on a semicircular track of radius $40 \mathrm{m}$ If he starts at one end of the track and reaches the other end, find the magnitude of displacement of the person.

A, B and C starts cycling around a circular path in the same direction at same time. Circumference of the path is $1980 \mathrm{m}$. If the speed of A is $330 \mathrm{m}/\min$, speed of B is $198 \mathrm{m}/\min$ and C is $220 \mathrm{m}/\min$ and they start from the same point, then after what time interval they will be together at the starting point?

Suppose you are walking along the circumference of a circular ground and you have followed the same $4$ times. What will be your displacement in that case?

A body is moving along the circumference of a circle of radius 'R' and completes half of the revolution. Then, the ratio of its displacement to distance is 

A person moves on a semicircular track of radius $40 \mathrm{m}$. If he starts at one end of the track and reaches the other end, Find the magnitude of displacement of the person.
 

A person moves on a semicircular track of radius $40 \mathrm{m}$. If he starts at one end of the track and reaches the other end, find the magnitude of displacement of the person. 

A particle moves on a circular path. The ratio of distance covered to displacement, when a particle covers a quarter of the circular path will be 

A particle is moving in a circle as shown in figure.

(i) What is the distance travelled by the particle from P to R?
(ii) What is the distance travelled by the particle from P to P?
(iii) Find the dispalcement from R to P.
(iv) Find the displacement from R to R.

A monkey can climb $3 \mathrm{m}$ in one minute. After half an hour how high can be reached?

A body travelling with uniform acceleration crosses two points A and B with velocities $20 \mathrm{m}/\sec$ and $30 \mathrm{m}/\sec$ respectively. Then the speed of the body at mid-point of A and B is

Akhil walks from A to B to C to D to E. The magnitude of displacement of Akhil is $\sqrt{5} \mathrm{m}$. What is the distance travelled by akhil?

An athlete covers three rounds on a circular track of radius $50 \mathrm{m}$. Calculate total distance and displacement

A particle moves from point $O$ and take four rounds at the top and return to point $A$. Then it goes to point $P$ and $O\text{'}$ and moves half circle. Find the total distance covered by the particle.

$A$ walks $10 \mathrm{m}$ due East, then $4 \mathrm{m}$ due North, then $3 \mathrm{m}$ due South and then $5 \mathrm{m}$ due West and then after relaxing for sometime walks a metre southwards. In which direction and distance is he from the starting point?

Coordinate system is a type of frame of reference.

To measure position, displacement, acceleration of an object we do not need frame of reference.

Which of the following can be calculated if a frame of reference is given?

A frame of reference is a set of coordinates that can be used to determine positions and velocities of objects in that frame.

What is reference frame?