Question

in 1996, michael johnson ran 600 m in 1 min. johnsons mass at the time of his record - breaking run was 55 kg. what was his momentum at his average speed in kg x m/s?

Explanation:

Step1: Convert time to seconds

1 minute = 60 seconds.

Step2: Calculate average speed

Speed formula is $v=\frac{d}{t}$, where $d = 600$ m and $t = 60$ s. So $v=\frac{600}{60}=10$ m/s.

Step3: Calculate momentum

Momentum formula is $p = mv$, where $m = 55$ kg and $v = 10$ m/s. So $p=55\times10 = 550$ kg·m/s.

Answer:

550