Is the speedometer in a car used to find average velocity or instantaneous velocity

Instantaneous speed is calculated by distance traveled in an instant (hence instantaneous), while the average speed is calculated over a more appreciable time period. A quick way to check... The speedometer of a car shows its instantaneous speed (as we understand it) and not the average speed.

Speedometer gives the Instantaneous velocity

orange juice has a lower viscosity

hope it : )