Question

1 What do you mean by 2m/s?

2 which speed is greater
40m/s or 40km/hr?

3 What is essential to describe position of an object?

4 How is distance different from displacement?
Explain with on example.

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Answer 1

Answer:

1. 2 meters per second

2. 40km/ hr

3. whether the object is at rest or motion

4. distance :

1. distance is a scaler quantity

2. it refers to how much ground an object covered during motion

example: if a car travels east for 10 km

displacement :

1. it is vector quantity

2. displacement is a shortest distance covered by an object

example: if an object moves from position A to B then it's position changes

Answer 2

Answer:

1. 2m in 1 sec

2.40 m/s is greater

3. its relation with another object

4.distance the total length covered from start till end but displacement is the shortest distance covered from start to end

eg. if a person walks 10m east (AB)then 10m south(CD) total distance is AB + CD But displacement is AD