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When the velocity is constant, can the average velocity over any time interval differ from instantaneous velocity at any instant? If so, give an example; if not explain why.

Important Questions on Motion

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9th Telangana Board
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Physical Science Class 9>Chapter 2 - Motion>Let us Improve our learning>Q 2
You may have heard the story of the race between the rabbit and tortoise. They started from same point simultaneously with constant speeds. During the journey, rabbit took rest somewhere along the way for a while. But the tortoise moved steadily with lesser speed and reached the finishing point before rabbit. Rabbit woke up and ran, but rabbit realized that the tortoise had won the race. Draw distance vs time graph for this story.
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Physical Science Class 9>Chapter 2 - Motion>Let us Improve our learning>Q 3
A man is 48 m behind a bus which is at rest. The bus starts accelerating at the rate of 1 m s-2, at the same time the man starts running with uniform velocity of 10 m s-1. What is the minimum time in which the man catches the bus?
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Physical Science Class 9>Chapter 2 - Motion>Multiple choice questions>Q 1
The distance travelled by an object in a specified direction is
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Physical Science Class 9>Chapter 2 - Motion>Multiple choice questions>Q 2
If an object is moving with constant velocity, then the motion is
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Physical Science Class 9>Chapter 2 - Motion>Multiple choice questions>Q 3
If there is change in the velocity of the object then the state of object with respect to motion is
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Physical Science Class 9>Chapter 2 - Motion>Multiple choice questions>Q 4
If the acceleration of a moving object is constant then the motion is said to be
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9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 2 - Motion>Multiple choice questions>Q 2

Suppose that the three balls shown in figure below start simultaneously from the tops of the hills. Which one reaches the bottom first? Explain.

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