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FAQ (Frequently Asked Questions)

1. Can an object have zero displacements if it has moved through a distance? If yes, then support your answer with an example or proof.

Yes, an object can move a certain distance without having any displacement. The logic behind this statement is that the displacement is defined as the shortest distance between the final and initial position of the object.

This means that even if an object moves through a large distance, it should come back to its initial position. In that case, the corresponding displacement of the object will be zero.

2. Select the option that is true for the concept of displacement.

The value cannot be zero

The magnitude of displacement is larger than the distance that is travelled by the object

Both of the statements, which are marked (a) and (b), are false. The statement (a) is false because the total displacement of an object that travels a certain distance and comes back to its initial position is zero.

The statement (b) is false because the displacement of the object can be equal to but never greater than the distance that is travelled.

3. Mention the condition under which the magnitude of the average velocity of an object can be equal to the value of average speed.

We know that the average speed is the total distance that is travelled in a time frame and velocity is the total displacement in the time frame. The magnitude of average velocity and average speed will be the same when the total distance that is travelled is equal in its value to the displacement.

4. What can be the odometer of an automobile be used for measuring?

The odometer can be used for measuring the total distance that is travelled by a vehicle or automobile.