The speed of Sammy, given that he expends 1750 J while jogging is 7.1 m/s
Data obtained from the question
- Mass (m) = 69.5 Kg
- Energy (E) = 1750 J
- Speed (v) =?
How to determine the speed
The speed of Samnmy can be obtained as illustrated below:
E = ½mv²
1750 = ½ × 69.5 × v²
1750 = 34.75 × v²
Divide both side by 34.75
v² = 1750 / 34.75
Take the square root of both side
v = √(1750 / 34.75)
v = 7.1 m/s
Thus, Sammy is moving with a speed of 7.1 m/s
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