Question

question 3 (4 points) (01.04 mc) the speedometer of a car reads 85 mph. it passes a truck in the next lane traveling at 75 mph. which of the following statements is true? a both measurements are scalar quantities. b both measurements are vector quantities. c the cars measurement is a scalar, and the trucks measurement is a vector. d the cars measurement is a vector, and the trucks measurement is a scalar.

Explanation:

Speed is a scalar quantity as it only has magnitude (like 85 mph and 75 mph) and no direction. Scalar quantities are described by a single - valued number. Vector quantities have both magnitude and direction. Since the speeds of the car and the truck are given without any direction information, they are scalar.

Answer:

A. Both measurements are scalar quantities.