List of top Physics Questions on System of Particles & Rotational Motion asked in KCET

A charged particle is subjected to acceleration in a cyclotron as shown. The charged particle undergoes increase in its speed

Two protons are kept at a separation of 10 nm. Let F_n and F_e the nuclear force and the electromagnetic force between them

Two balls are thrown simultaneously in air. The acceleration of the centre of mass of the two balls when in air,

Moment of Inertia of a thin uniform rod rotating about the perpendicular axis passing through its centre is $I$. If the same rod is bent into a ring and its moment of inertia about its diameter is $I'$, then the ratio ${\frac {I}{I'}}$ is

A force $F=5 \hat{i}+2\hat{j}-5 \hat{k}$ acts on a particle whose position vector is $r=\hat{i}-2 \hat{j}+\hat{k}$ What is the torque about the origin?

A rotating wheel changes angular speed from $1800\,rpm$ to $3000\, rpm$ in $20\,s$. What is the angular acceleration assuming to be uniform ?

A solid sphere of mass $m$ rolls down an inclined plane without slipping, starting from rest at the top of an inclined plane. The linear speed of the sphere at the bottom of the inclined plane is $v$. The kinetic energy of the sphere at the bottom is

A door of $1.6\, m$ wide requires a force of $1 \,N$ to be applied at the free end to open or close it. The force that is required at a point $0.4\, m$ distant from the hinges for opening or closing the door is

If the earth shrinks such that its mass does not change but radius decreases to one quarter of its original value then one complete day will take

Three vectors satisfy the relation $\overrightarrow{A}.\overrightarrow{B}=0$ and $\overrightarrow{A}.\overrightarrow{C}=0$ then $\overrightarrow{A}$ is parallel to