Which has more kinetic energy,
a. when you walk or when you run? Why?
b. a downhill skier or a cross-country skier? Why?
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Which has more kinetic energy,
a. when you walk or when you run? Why?
b. a downhill skier or a cross-country skier? Why?
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Answer:
A. Run
B. Downhill skier
Explanation:
A. Kinetic energy is directly proportional to the square of velocity and Running has higher velociy compare to walking. You can have more kinetic energy when running.
B. Downhill skiers can simply go down the mountain, though at a higher rate of speed than a cross country skier can achieve.
Because Cross country skier rely on their own strength to move forward. While Downhill skiers rely on gravity to pull them down. Instead of pushing themselves forward.