12. Consider two frictionless slides, both of the same height. Slide A is short.
ID: 1572936 • Letter: 1
Question
12. Consider two frictionless slides, both of the same height. Slide A is short. Slide B is long. Which pair of statements is true? A) The child on slide B will have a greater final speed, and the power developed by the gravitational force is greater for slide B. B) The child on slide A will have a greater final speed, and the power developed by the gravitational force is greater on slide A. C) The final speed for both slides will be the same, and the power developed by the gravitational force is greater on slide A. D) The final speed for both slides will be the same, and the power developed by the gravitational force is greater on slide B. Ea war touse thesis tatement and suporing vidence to draw a vald condusionExplanation / Answer
SInce both A and B are at the same height and acceleration due to gravity is the same for them, the final speed will be the same.
Energy lost will be the same for both the slides. But the time taken to slide down will be less on slide A as it is shorter. Since power is inversely proportional to time, the power developed slide A is greater.
Option C is correct
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.