Question

Q2.Why do we consider the average speed of an object for its complete journey?​

Answer 1

Answer:

Average Speed is important to understand the rate at which a journey takes place. Throughout a journey, the speed may vary from time to time. In that case, finding the average speed becomes important to have an estimate of the rate at which the journey is completed.

Answer 2

Answer:

The average speed of the object helps to determine the rate at which the journey takes place.

Explanation:

• Speed shows how fast a body is moving and it is a scalar quantity (i.e, no direction).
• So, the average speed is the total distance covered by a body in a particular interval of time divided by the total time.
• Average speed is also scalar quantity.
• So, if an object covers a distance 'd' in a particular time interval of t₁ to t₂,

then,                         avg speed = s/ (t₂ - t₁)

Generalizing,     Average speed = total distance ÷ total time.

• Speed is not constant, it changes throughout the journey from time to time.

Since speed keeps changing it is important to calculate the average speed of the journey to have an estimation of the rate of speed at which the journey is completed.