MCQ
For rotational equilibrium,
  • A
    $\sum_{i=1}^n \tau_{\text {net }}=0$
  • B
    Both $\sum_{i=1}^n F _{\text {net }}=0$ and $\sum_{i=1}^n \tau_{\text {net }}=0$ are the necessary conditions for the rotational equilibrium
  • C
    Both $\sum_{i=1}^n F _{\text {net }}$ and $\sum_{i=1}^n \tau_{\text {net }}=0$ are not necessary for rotational equilibrium
  • D
    $\sum_{i=1}^n F _{\text {net }}=0$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A rocket of mass $M$ is launched vertically from the surface of the earth with an initial speed $V$. Assuming the radius of the earth to be $R$ and negligible air resistance, the maximum height attained by the rocket above the surface of the earth is
Two projectiles are fired from the same point with the same speed at angles of projection $60^o$ and $30^o$ respectively. Which one of the following is true?
A satellite of mass $m$, initially at rest on the earth, is launched into a circular orbit at a height equal to the radius of the earth. The minimum energy required is
When an object covers equal distances in equal time intervals, then its speed is:
Mean kinetic energy per degree of freedom of gas molecules is
A wire can be broken by applying a load of $20\, kg$ weight. The force required to break the wire of twice the diameter is .......... $kg\, wt$
A uniform disc of mass $m_0$ rotates freely about a fixed horizontal axis passing through its centre. A thin cotton pad is fixed to its rim, which can absorb water. The mass of water dripping onto the pad per unit time is $\mu.$ After what time will the angular velocity of the disc get reduced to half its initial value ?
A lead shot of $1mm$  diameter falls through a long column of glycerine. The variation of its velocity $v$. with distance covered is represented by
The angular acceleration of a body, moving along the circumference of a circle, is :