Average Speed and Velocity

An object travels a distance of 165 m in 15 seconds. What is its average velocity?

• 11 m/s

• 9m/s

• 13 m/s

• 16 m/s

A train travels in a straight line at a constant speed of 60 km/h for a particular distance d and then travels another distance equal to 2d in the same direction at a constant speed of 80 km/h in the same direction as it was previously going. What is the average speed of the train during the whole journey?

• 72 kmph

• 54 kmph

• 90 kmph

• 72 m/s

If a space shuttle orbits Earth once, what is the shuttle’s distance traveled and displacement?

• Distance and displacement both are zero.

• Distance is the circumference of the circular orbit while displacement is zero.

• Distance is zero while the displacement is the circumference of the circular orbit.

• Distance and displacement both are equal to the circumference of the circular orbit.

Four bicyclists travel different distances within certain time periods along a straight path. Find out the cyclist who traveled with the greatest average speed.

• Cyclist 1 travels 95 m in 27 s

• Cyclist 2 travels 87 m in 22 s

• Cyclist 3 travels 106 m in 26 s

• Cyclist 4 travels 108 m 24 s

Using the graph, what is the runner’s average velocity from 0 to 4 s?

• 3 m/s

• 2 m/s

• 4.5 m/s

• 7 m/s

A car travels along a straight road to the east for 120 meters in 5 seconds, then goes west for 60 meters in 1 second. Determine average speed and average velocity.

• Average speed = 45 m/s, Average velocity = 15 m/s

• Average speed = 30 m/s, Average velocity = 10 m/s

• Average speed = 10 m/s, Average velocity = 30 m/s

• Average speed = 40 m/s, ‎‎‎‎Average velocity = 20 m/s

What is the difference between average speed and average velocity?

• Average velocity is the total displacement of an object over the total time taken, whereas average speed is the total distance travelled by an object over the total time taken

• Average speed has only magnitude, whereas average velocity has both, magnitude and direction

• The average speed of a moving object can never be zero, but the average velocity of a moving object can be zero

• All of the above

A car travels one-third of the distance at a speed of 60 km/hr and a remaining distance of 30 km/hr. Then the average speed of the car for the whole journey is:

• 30 kmph

• 36 kmph

• 40 kmph

• 45 kmph

The velocity-time graph for a car moving in a straight line is shown below, the total distance covered by the body is:

• 1000 m

• 100 m

• 10 m

• 0 m

A boy boarded a train on 4th June 2020 at Nagarcoil for Madgaon. The train departed at 22:30 hours from Nagarcoil and reached Madgaon at 04:30 hours on 6th June 2020. If the distance covered by the train during this time interval is 1145 km, the average speed of the train was nearly

• 38.16 kmph

• 40.5 kmph

• 42.5 kmph

• 36.5 kmph