A small particle of mass rests on a horizontal turntable at a distance from the…

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

A small particle of mass

0.36\,\text{g}

rests on a horizontal turntable at a distance

25\,\text{cm}

from the spindle axis. The turntable is accelerated at

\alpha=\frac13\,\text{rad s}^{-2}

. The frictional force exerted by the table on the particle

2\,\text{s}

after startup is (1)

40\,\mu\text{N}

(2)

30\,\mu\text{N}

(3)

50\,\mu\text{N}

(4)

60\,\mu\text{N}