# Average Velocity

## Trending Questions

**Q.**

An insect moves along a circular path of radius 10 cm with a constant speed. If it takes 1 minute to move from a point on the path to the diametrically opposite point, then the distance covered, speed, displacement and velocity respectively are

3.14 cm, 3.14 cm/min, 10 cm, 10 cm/min

31.4 cm, 31.4 cm/min, 20 cm, 0.33 cm/s

314 cm, 314 cm/min, 0.1 cm, 0.1 cm/min

0.314 cm, 0.314 cm/min, 1cm, 1 cm/min

**Q.**

The distance covered by a body in unit time in a specified direction is called

displacement

velocity

acceleration

speed

**Q.**

Can the average velocity of a body be zero when average speed is non-zero?

**Q.**

Rate of change of velocity is called ____?

**Q.**Question 1

An athlete completes one round of a circular track of diameter 200 m in 40 seconds. What will be the distance covered and the displacement at the end of 2 minutes 20 seconds ?

**Q.**The rate of change in motion is called

**Q.**

When a body moves uniformly along the circle, then:

Its velocity changes but its speed remain the same

Its speed changes but its velocity remain the same

Both speed and velocity changes

Both speed and velocity remain same

**Q.**

If a body starts from a point and then returns to the same point, then its

Average velocity is zero but not average speed.

Average speed is zero but not average velocity.

Both average speed and velocity is zero.

Average speed and average velocity depends upon the path.

**Q.**

Assuming that the flight travels in a straight line from Chennai to Bangalore, the shortest distance between Chennai and Bangalore is 150 km.

A car takes 4hrs to travel from Bangalore to Chennai whereas the flight takes only 30min to travel from Bangalore to Chennai. If the distance from Bangalore to Chennai by road is 400km and the air is 150km. Calculate the average speed and average velocity of flight and car.

Answer in the given order (in kmhr ):

Find the Average Speed of Flight, Average velocity of Flight, Average speed of car, Average velocity of car.

300 , 300, 37.5 , 100

300 , 37.5, 100 , 100

300, 300, 200, 100

300, 300, 100, 37.5

**Q.**

The velocity of a car moving on a circular path changes continuously. Why?

**Q.**

Can a body have a constant velocity but a varying speed? Give an example.

**Q.**A particle traverse along a circular arc of radius 5m with constant speed of 2.5 m/s .What is the average acceleration over the one quarter circle?

**Q.**

The time is taken by Raj to cover a distance of 540 km at a speed of 60 km/hr

9hrs

900min

540min

10hrs

**Q.**A particle moving in a uniform circular motion undergoes an angular displacement a(less than 360 degree) from point p to q . the angle between average velocity from p to q and velocity at q is?

**Q.**

The magnitude of average velocity _____ equal to the average speed.

**Q.**

Show that the average speed of a body cannot be zero but the average velocity can be zero.

**Q.**

Under what condition, is the magnitude of the average velocity of an object equal to its average speed?

**Q.**

(a) Define the displacement of a particle in linear motion.

(b) Does it depend on the path followed?

**Q.**

A man walks from his home to office in 10 mins and from office to home in 15 mins. The distance between the house and home = d. find out his average velocity.

2d1500

d1500

2d25

0

**Q.**Explain term and how they related to each other ---

1 velocity

2 displacement

3 acceleration

**Q.**A body travels 80m in first 10s and again 80m in further 5s .Calculate the initial velocity and acceleration of the body

**Q.**

Differentiate between speed , velocity and acceleration.

**Q.**A girl travels from her house to school as depicted in the given graph. What is her speed between 8 to 12 minutes of her journey?

- 12.75 m per minute
- 14.75m per minute
- 18.75 m per minute
- 16.75m per minute

**Q.**

A body goes from C to D with a velocity of 20 m/s and comes back from D to C with a velocity of 30 m/s. The average velocity of the body during the whole journey is

24 m/s

26 m/s

25 m/s

Zero

**Q.**

A particle is moving from point A to point B and covers the entire distance of 10 km in just 2 minutes. What would be the speed at which the particle was traveling?

5 m/s

83.3 km/s

20 km/s

83.3 m/s

**Q.**The distance-time graph of X, Y and Z in a race is given below. Find the winner by analysing the graph.

- X
- Y
- Z
- Draw

**Q.**

A body goes from C to D with a velocity of 20 m/s and comes back from D to C with a velocity of 30 m/s. The average velocity of the body for the whole journey is

25 m/s

26 m/s

Zero

24 m/s

**Q.**Four cars A, B, C and D are moving on a levelled road. Their distance versus time graphs is shown in the figure. Choose the correct statement.

- Car A is faster than car D.
- Car B is the slowest.
- Car D is faster than car C.
- Car C is the slowest.

**Q.**

Can the average velocity of a body be zero when the average speed of the body is non-zero?

**Q.**

Usha swims in a $90\mathrm{m}$ pool. She covers $180\mathrm{m}$ in one minute by swimming from one end to the other and back along a straight path. Find the average velocity of Usha.