Does the odometer of a car measure a scalar or a vector quantity? What about speedometer?
Both odometer and speedometer measure scalar quantities.
An odometer is a device that shows the total distance traveled by the vehicle. As distance is a scalar quantity, you can say that an odometer measures a scalar quantity.
A speedometer is a device that shows the instantaneous speed of the vehicle. As speed is a scalar quantity, you can say that a speedometer measures a scalar quantity.
Hence, both odometer and speedometer measure scalar quantities.
You are in the middle of a large field. You walk in a straight line for 100 m, then turn left and walk 100 m more in a straight line before stopping. When you stop, you are 100 m from your starting point. By how many degrees did you turn? (a) 90°. (b) 120°. (c) 30°. (d) 180°. (e) This is impossible. You cannot walk 200 m and be only 100 m away from where you started.
94% of StudySmarter users get better grades.Sign up for free