MCQ
An object will continue moving uniformly until
  • A
    The resultant force acting on it begins to decrease
  • The resultant force on it is zero
  • C
    The resultant force is at right angle to its rotation
  • D
    The resultant force on it is increased continuously

Answer

Correct option: B.
The resultant force on it is zero
b
The object is remains in acceleration until its resultant force on it is zero.

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An annular disk of mass $M$, inner radius $a$ and outer radius $b$ is placed on a horizontal surface with coefficient of friction $\mu$, as shown in the figure. At some time, an impulse $J_0 \hat{x}$ is applied at a height $\mathrm{h}$ above the center of the disk. If $h=h_m$ then the disk rolls without slipping along the $x$-axis. Which of the following statement(s) is(are) correct?

(image)

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