A-LevelPhysicsWork, energy and powerFeb/Mar 2018Paper 1 Q161 Mark
A bead is released from rest at point P and slides along a wire, as shown. [Figure 16.1] The track loops around and forms a vertical circle of diameter 40 cm. At point Q, the bead has a speed of 1.4 ms⁻¹. Air resistance and friction on the wire are negligible. What is the height h from which the bead is released?
A0.30 m
B0.40 m
C0.50 m
D0.60 m
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The correct answer is C. This question tests the candidate's understanding of work, energy and power within the Physicssyllabus. The examiner's mark scheme requires...
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