Question

A driver is driving his car along a road is shown in figure. The driver makes sure that the speedometer reads exactly $40km/h$. What happens to the speed of the car from $P$ to $R$ ?

• A. Speed remains constant
• B. Speed first increases then decreases
• C. Speed first decreases then increases
• D. Nothing can be decided

Answer 1

The correct option is A Speed remains constant

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

The speedometer reads the speed of the car. If the reading of the speedometer is constant then the speed remains constant.