Displacement

Q.

An ant travels a distance of $8cm$ from P to Q and then moves a distance of $6cm$ at right angles to PQ. Find its resultant displacement.

Q.

A particle moves 3m north, then 4m east and finally 6m south. Which of the following is correct about the distance travelled and the displacement?

1. 5m, 13m

2. 12m, 6m

3. 13m, 5m

4. 3m, 5m

Q.

An athlete completes one round of a circular track of radius R in 40 sec . What will be his displacement at the end of 2 minutes 20seconds?

Q.

What is the minimum distance an ant has to travel from point A to B (along the walls only) as shown in the figure?

1. 1.73m

2. 2.22m

3. 2.41m

4. 3.02m

Q.

Which of the following statement is correct regarding distance and displacement?

1. Distance is always smaller than the magnitude of displacement.

2. Distance is greater than or equal to the magnitude of displacement.

3. Distance is always greater than the magnitude of displacement.

4. Distance can never be greater than displacement.

Q.

A car moves 2km due West , then , 1km due East and then again while falling , 1km due West . What is its Displacement?

Q.

If the displacement is zero , velocity is ………………………………….( maximum/zero ).5ed7fdc04a87eed717db474a87eed717db47

Q.

The magnitude of displacement can be equal to or lesser than distance.

1. True
2. False

Q.

Name the term given below:

The shortest distance covered by an object from its initial position to its final position in a particular direction.

Q. State two factors on which the work done on a body depends.

Q.

Distance is a (1) ____ quantity and displacement is a (2) ____ quantity.

1. (1) scalar

   (2) vector

2. (1) vector

   (2) scalar

3. (1) scalar

   (2) scalar

4. (1) vector

   (2) vector

Q. A particle tied to a string of negligible weight & length , l is swung in a horizontal circular path with constant angular velocity having time period, T . if the string length is shortened by l/2 while the particle is in motion , the time period?

Q.

Distance is a scalar quantity. Give reason.

Q.

If the distance travelled by an object is zero, then the displacement of the object is:

1. zero

2. not zero

3. negative

4. It may or may not be zero

Q.

1:- Write the difference between Distance and Displacement?

Q.

The distance and displacement between two points for a moving body will be the same when ___

1. distance and displacement are of equal magnitude.

2. the body travels without changing its direction towards the final point.

3. the body's initial point and final point are the same.

4. a body is moving in a circular path.

Q.

A runner completes one round of a circular track of diameter 400 m in 40 s. What will be the distance covered and the displacement respectively at the end of 2 minutes 20 s?

1. 4400 m, 200 m

2. 4400 m, 400 m

3. 2200 m, 400 m

4. 2200 m, 800 m

Q.

A ball thrown vertically upwards with a speed of 19.6 m/s from the top of a tower returns to the base of tower in 6s. Find the height of tower : ( Assume accelaration due to gravity $9.8m/s^2$

1. 60

2. 58

3. 58.8

4. None of these

Q.

Two scooters starting from rest accelerate uniformly at the same rate. The second travels for twice the time of the first. Then the relation between the distance covered by the first scooter (s1) to that of the second scooter (s2) is

1. $s_1=s_2$

2. $s_1=2s_2$

3. $s_2=3s_1$

4. $s_2=4s_1$

Q.

An insect moves along the sides of a wall of dimensions 12m × 5 m starting from one corner and reaches the diagonally opposite corner. If the insect takes 2 s to reach the diagonally opposite corner, then find the ratio of average speed to the average velocity of the insect.

1. 12:5

2. 13:12

3. 10:5

4. 17:13

Q.

In the given figure, PQR is a right angled triangle, right angled at Q. An ant travels from P to Q, covering 13 m. Then, it travels from Q to R covering 12 m. What is the distance travelled by the ant? Also, what is its displacement from the initial position?

1. Displacement: 25m , Distance: 25m

2. Displacement: 5m , Distance: 25m

3. Displacement: 25m , Distance: 5m

4. Displacement: 5m , Distance: 5m

Q. Will time travel and teleportation be possible in future?

Q.

The minute hand of clock is 7cm long. Calculate the distance covered and the displacement of minute hand of the clock from 9:00 am to 9:30 am?

Q.

What is the numerical ratio of displacement to distance for a moving object?

1. always <1

2. always >1

3. always =1

4. Either <1 or =1

Q.

If net displacement of any particle, moving in a 1-dimension is zero then its average speed?

1. Net-displacement/total time taken

2. 10 m/s

3. Cannot be determined

4. Zero

Q.

James and Lucas competed in climbing a mountain and coming back. James climbed at an average rate of $3$ mph and ran back at $4$ mph.

Lucas climbed at an average rate of $2$ mph and ran back at $5$ mph.

If the path from the bottom to the top of the mountain was $2$ miles, how much time did each take to finish and who was faster $?$

Q. Which of the following statements is true for displacement?

1. It can be zero.
2. It can be greater than the distance.
3. It does not have direction.
4. It can be less than the distance.

Q.

When will be the magnitudes of Displacement and distance are equal?

1. Always

2. Never

3. Only if object returns back to the same point

4. Only if actual path taken is the shortest path itself

Q.

An ant first travels from P to R on a right angled triangle PQR which is 13m long. Then it walks to point Q travelling 12m. Find the displacement and distance travelled by the ant?

1. Displacement: 25m , Distance: 25m

2. Displacement: 25m , Distance: 5m

3. Displacement: 5m , Distance: 25m

4. Displacement: 5m , Distance: 5m

Q.

A ball thrown vertically upwards with a speed of 19.6 m/s from the top of a tower returns to the base of tower in 6s. Find the height of tower : ( Assume accelaration due to gravity $9.8m/s^2$)

1. 60 m

2. 100 m

3. None of these

4. 58.8 m