QuestionMechanics / Atwood machine
A frictionless pulley has a rope of negligible mass passing over it. Blocks of mass 15 kg and 5 kg are attached at the two ends of the rope and held stationary. When the masses are released to move freely, their speed in m s⁻¹, after the rope has slipped by 0·25 m over the pulley, is closest to : (take g = 10·0 m s⁻²)
- (a) 5·0
- (b) 2·2
- (c) 1·6
- (d) 1·2
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