Two men of unequal masses hold on to the two sections of a light rope passing over a smooth light pulley. Which of the following are possible?

  • A
    The lighter man is stationary while the heavier man slides with some acceleration.
  • B
    The heavier man is stationary while the lighter man climbs with some acceleration.
  • C
    The two men move with accelerations of the same magnitude in opposite directions.
  • D
    All of the above.

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Two unequal masses are connected on two sides of a light string passing over a light and smooth pulley as shown in the figure. The system is released from rest. The larger mass $(2\, kg)$ is stopped $1\, s$ after the system is set into motion and then released. Find the time elapsed before the string becomes tight again. (Take $g = 10\, m/s^2$)

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In the arrangement shown in the figure, the work done by the string on the block of mass $0.36 \,kg$ during the first second after the blocks are released from a state of rest is: (Ignore friction and the mass of the string.)
(Acceleration due to gravity, $g = 10 \,m/s^2$) (in $\,J$)

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