science
Grade-7
Easy

Question

In which of the following situations do we need to calculate the average speed of an object?

  1. When the object is undergoing a non-uniform motion
  2. When the object is undergoing a uniform motion
  3. When the object is at rest
  4. When we cannot calculate the velocity of the object

Hint:

When an object is undergoing a non-uniform motion.

The correct answer is: When the object is undergoing a non-uniform motion


    • when the body is in non-uniform motion, we have to calculate the average speed of the body.
    • When a body moves with non-uniform speed it covers unequal distance in equal intervals of time.

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