Combined Rotational and Translational Motion

A motion that is a combination of rotational and translational motion is called _____.

What is rotational motion? What is its cause?

All the particles of a rigid body moves in a straight line path about the fixed axis of rotation.

What is the difference between translational and rotational motion?

Describe kinematics of rotational motion.

What is rotational motion? Explain rotational motion about a fixed axis.

Angular momentum and axial velocity of a body of mass $\mathrm{m}$ are related as 

When the torque acting upon a system is zero, which of the following will be constant?

A rod is rotating about one end. If a force ${\mathrm{F}}_1$ acting on the other end produces torque $\mathrm{T}$ and supplies power ${\mathrm{P}}_1$ find the value of force ${\mathrm{F}}_2$ that will produce the same amount of power when it acts at the midpoint of the rod. Assume that all the forces are ${\perp }^{\mathrm{r}}$ to the axis of rotation & axis of rod. The rod starts from rest.

A ring of radius $7 \mathrm{cm}$ is rotating about the central axis ${\perp }^{\mathrm{r}}$ to its plane. A force acts on it tangentially, such that it does a work of $10\mathrm{J}$ in a complete rotation. Find the value of that force.

When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be

A disc is spinning with an angular velocity $? \raisebox{1ex}{$\mathrm{rad}$}\!\left/ \!\raisebox{-1ex}{$\sec $}\right.$ about the axis of spin. The couple applied to the disc causing precession will be

In an automobile, if the vehicle makes a left turn, the gyroscopic torque

The rotor of a ship rotates in clockwise direction when viewed from the stern and the ship takes a left turn. The effect of the gyroscopic couple acting on it will be 

A disc spinning on its axis at $20 \raisebox{1ex}{$\mathrm{rad}$}\!\left/ \!\raisebox{-1ex}{$\sec $}\right.$ will undergo precession when a torque $100 \mathrm{N}-\mathrm{m}$ is applied about an axis normal to it at an angular speed, if mass moment of inertia of the disc is the $1 \mathrm{kg}-{\mathrm{m}}^2$-

The rigid is made to rotate about an axis of rotation. Its moment of inertia about the axis of rotation depends on the distribution of its mass about the axis about which it rotates, and also the orientation and position of this axis of rotation.

For rotation about a fixed axis, the direction of linear velocity changes continuousely but the direction of its rotational analog does not change with time.

How the linear velocity is related with its rotational analog?

Define the rotational analog of force? Write its SI unit.

Define the rotational analog of mass.