List of top Physics Questions on torque asked in KEAM

A couple produces a

When no external torque acts on a rotating system,

A hollow sphere and a solid sphere, of equal mass and equal radii roll down without slipping on an inclined plane. If the torques experienced are \( \tau_H \) and \( \tau_S \), then (A) \( \tau_H < \tau_S \)

A ball of mass 1 kg and radius 0.5 m, starting from rest rolls down on a $30^\circ$ inclined plane. The torque acting on the ball at the distance of 7 m from the starting point is close to (Take $g = 10 \text{ m/s}^2$) (A) 0.25 N-m

A uniform bar of mass $m$ is supported by a pivot at its top about which the bar can swing like a pendulum. If a force $F$ is applied perpendicular to the lower end of the bar as shown in figure, what is the value of $F$ in order to hold the bar in equilibrium at an angle $\theta$ from the vertical

A torque of $1$ N m is applied to a wheel which is at rest. After $2$ seconds the angular momentum in kg m$^2$/s is

The torque of a force$\overrightarrow{F} = 2\hat{i} - 3\hat{j} +5\hat{k}$ acting at a point whose position vector $\overrightarrow{r} = 3\hat{i} - 3\hat{j} + 5\hat{k}$about the origin is