Question

Simon is riding a bike at 12 km/h away from his friend Keesha. He throws a ball at 5 km/h back to Keesha, who is standing still on a sidewalk.

How fast would Keesha say the ball is traveling?

5 km/h
7 km/h
12 km/h
17 km/h

Answer 1

Keesha would say the ball is traveling at 7 km/h. The correct option is the second option 7 km/h

What is relative velocity?

Relative velocity is defined as the velocity of an object with respect to another observer.

From the question, we are to determine how fast Keesha would say the ball is traveling. That is, the relative velocity

Relative velocity of the ball = 12 km/h - 5 km/h

Relative velocity of the ball = 7 km/h

Hence, Keesha would say the ball is traveling at 7 km/h. The correct option is the second option 7 km/h

Lear more on Relative velocity here: https://brainly.com/question/13363067

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