An Elevator Is Moving Up with 8 M/s When a Bolt

question 48

Multiple Choice

An elevator is moving up with 8 m/s when a bolt came loose from the bottom.The bolt reaches the bottom of the shaft in 4 seconds.The velocity of the bolt at the bottom is

• A)39 m/s.
• B)21 m/s.
• C)-31.2 m/s.
• D)-47.2 m/s.

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