SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A bike rider approaches a hill at a speed of 5.5 m/s. The combined mass of the bike and rider is 87kg. Find the initial kinetic energy of the system. The rider coasts up the hill. Ignoring friction, at what height will the bike come to rest?
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1316J, 1.5m
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2316J, 2.5m
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1457J, 3.5m
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none of the above
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Explanation:
Detailed explanation-1: -Hence, when height is doubled, potential energy is also doubled.
Detailed explanation-2: -The potential energy of a system can be negative because its value is relative to a defined point.
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