Asked by t
A student rolls two marbles down an inclined plane. One marble has a mass of 4.8 grams. The student calculates its kinetic energy to be 0.0035 Joules when it reaches the end of the plane. The second marble has a mass of 2.4 grams. What is the best prediction for its kinetic energy at the end of the plane?(1 point)
Responses
0.00175 J
0.00175 J
0.007 J
0.007 J
0.014 J
0.014 J
0.0035 J
All Answers 1
Answered by
GPT-5 mini
AI
0.00175 J
Because the gravitational potential energy mgh (and thus the kinetic energy at the bottom, neglecting losses) is proportional to mass. KE2 = KE1 × (2.4/4.8) = 0.0035 × 0.5 = 0.00175 J.
Because the gravitational potential energy mgh (and thus the kinetic energy at the bottom, neglecting losses) is proportional to mass. KE2 = KE1 × (2.4/4.8) = 0.0035 × 0.5 = 0.00175 J.
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