Question

A driver is driving his car along a road is shown in figure. The driver makes sure that the speedometer reads exactly $40km/h$. The driver should say that

• A. The average speed is $40km/h$
• B. The average velocity is $40km/h$
• C. The average speed is $80km/h$
• D. The average velocity is $80km/h$

Answer 1

The correct option is A The average speed is $40km/h$

The driver makes sure that the speedometer reads exactly $40km/h.$

The speedometer reads the speed of car.If reading in speedometer is constant than the speed remains constant.If the speed of car remains constant throughout the journey then average speed also remains constant with value $40km/h.$