Question

Alex is standing still and throws a football with a speed of 10 m/s to his friend, who is also standing still. the two friends are standing 5 meters apart. which describes how each person observes the speed of the football? alex observes it as 10 m/s, and his friend observes it as less than 10 m/s. alex observes it as less than 10 m/s, and his friend observes it as 10 m/s. both alex and his friend observe it as 10 m/s. both alex and his friend observe it as less than 10 m/s.

Answer 1

The statement that describes how each person observes the speed of the football is both Alex and his friend observe it as 10 m/s.

To answer the question, we need to know what speed is.

What is speed?

Speed is the distance moved per unit time

Since Alex is standing still and throws a football with a speed of 10 m/s to his friend, who is also standing still. If there were relative motion between Alex and his friend, that is Alex or his friend were moving, each person would observe a different speed for the football.

Since there is no relative motion between Alex and his friend, they both observe the same speed for the football.

So, both Alex and his friend observe it as 10 m/s.

So, the statement that describes how each person observes the speed of the football is both Alex and his friend observe it as 10 m/s.

Learn more about speed here:

brainly.com/question/24739297

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