Per NCERT §4.3 (Galileo's double-incline experiment), a ball released on a frictionless incline rises on the other side to which height?
AZero height (rolls flat)
BAlways higher than initial
CSame as initial height
DAlways lower than initial
Answer & Solution
Correct answer: C. Same as initial height
NCERT §4.3: in the ideal frictionless case the ball regains its initial height regardless of the slope of the second incline.
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