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Author Question: A skier weighing 0.80 kN comes down a frictionless ski run that is circular (R = 30 m) at the ... (Read 582 times)

jhjkgdfhk

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Question 1

A skier weighing 0.70 kN goes over a frictionless circular hill as shown. If the skier's speed at point A is 9.2 m/s, what is his speed at the top of the hill (point B)?



3.1 m/s

6.2 m/s

5.2 m/s

4.1 m/s

6.5 m/s


Question 2

A skier weighing 0.80 kN comes down a frictionless ski run that is circular (R = 30 m) at the bottom, as shown. If her speed is 12 m/s at point A, what is her speed at the bottom of the hill (point B)?



17 m/s

19 m/s

18 m/s

20 m/s

12 m/s


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Marked as best answer by jhjkgdfhk on Aug 1, 2020

jliusyl

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