Five marbles roll down a ramp. Each marble reaches the bottom of the ramp at a speed of 3 meters/second. Which marble has the highest kinetic energy at the bottom of the ramp? The table lists the mass of each marble.
Marble 1 Marble 2 Marble 3 Marble 4 Marble 5
10 g 20 g 25 g 40 g 30 g
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Answer:
marble 4 (40g)
In this problem, all the marbles have same speed (v=3 m/s), so their difference in kinetic energy depends on their different mass only
Explanation:
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