EVERYDAY SCIENCE

Detailed explanation-1: -Assertion :The speedometer of an automobile measures the instantaneous speed of the automobile. Reason: Average velocity is equal to total displacement divided by total time taken.

Detailed explanation-2: -What you see on the speedometer of a car is the speed at that instant or moment – the instantaneous speed. It’s the speed right now . One way to find this instantaneous speed is to measure the rate of rotation of the wheels.

Detailed explanation-3: -The speed you read on a speedometer is. Velocity.

Detailed explanation-4: -A car’s speedometer shows instantaneous speed because the speedometer shows the cars speed while the car is moving at that moment.