Question

All of the following are examples of velocity except:

A. a northbound train moving at 60 km/hr
B. a dog trotting at 2km/hr eastward toward his master's home
C. a bicyclist traveling 25 km/hr northwest
D. a unicyclist riding 1km/hr on a tightrope at the circus

Answer 1

All of the given examples are actually examples of velocity because they have both a magnitude (speed) and a direction.

Step-by-step explanation:

Velocity is defined as the rate at which an object changes its position in a particular direction. It is a vector quantity that includes both speed and direction. Therefore, all of the given examples are actually examples of velocity because they have both a magnitude (speed) and a direction.

A northbound train moving at 60 km/hr (option A) has a velocity of 60 km/hr to the north. A dog trotting at 2 km/hr eastward toward his master's home (option B) has a velocity of 2 km/hr to the east. A bicyclist traveling 25 km/hr northwest (option C) has a velocity of 25 km/hr in the northwest direction.

And finally, a unicyclist riding 1 km/hr on a tightrope at the circus (option D) has a velocity of 1 km/hr in the direction of the tightrope.