A Bead Is Moving with a Speed of 20 M/s

question 5

Multiple Choice

A bead is moving with a speed of 20 m/s at position A on the track shown in the figure. This track is friction-free, and there is no appreciable air resistance. What is the speed of the bead at point C?

• A) 0 m/s
• B) 69 m/s
• C) 20 m/s
• D) 34 m/s
• E) We cannot solve this problem without knowing the mass of the bead.

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