cse • paper_1 • mechanics
[UPSC CSE 1989] Conservation Laws (Q58, 20M)
A girl on skis (mass 60kg including skis) reaches the bottom of a hill going 20\text{ ms}^{-1}. What is her momentum? She then strikes a snowdrift which slops her on 3s. What average force does the snow exert on the girl? Assuming that the force remains constant. How far does the girl penetrate the snowdrift?
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