Question

Jessie and Jaime complete a 5.0 km race. Each has a mass of 68 kg. Jessie runs the race at 15 km/h; Jaime walks it at 5 km/h. How much metabolic energy does each use to complete the course

Answer 1

The total metabolic energy used by each to complete the course is determined as 656.91 J.

Kinetic energy of Jessie and Jaime

The kinetic energy of Jessie and Jaime is calculated as follows;

K.E = ¹/₂mv²

where;

• m is mass of Jaime
• v is speed

15 km/h = 4.17 m/s

5 km/h = 1.39 m/s

K.E = ¹/₂(68)(4.17)² + ¹/₂(68)(1.39)²

K.E = 656.91 J

Thus, the total metabolic energy used by each to complete the course is determined as 656.91 J.

Learn more about kinetic energy here: https://brainly.com/question/25959744

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