The linear momentum of a system is simply the sum of the linear momentum of the constituent parts. Thus we... View Article
Conservation of angular momentum explains this. When she folds her arms and draws her hands closer her moment of inertia decreases and... View Article
The moment of momentum is known as angular momentum.
Increase in the angular velocity of a planet when it comes nearer to the sun is an example of law... View Article
Angular momentum can change only when external torque acts on the system
A pair of equal and opposite forces with different line of action are said to form a
Torque = rotational force = force X lever arm If we make the lever arm twice as great, we increase... View Article
The moment of inertia of a body is independent of its angular velocity.It depends upon the position and orientation of... View Article
Option (c) Torque is an axial vector. Axial vectors are those vectors that represent rotational effect and act along the... View Article
The moment of inertia of a solid sphere of mass M and radius R is (2/5)MR2 Moment of inertia Moment... View Article
The SI unit of moment of inertia is kg.m2 Moment of inertia is defined as the ratio of net angular... View Article
Answer: A ring has a larger moment of inertia because its entire mass is concentrated at the rim at a... View Article
Second’s hand of a clock completes one turn in one second.i.e 1 revolution per minute Angular velocity of second’s hand;... View Article
Both, rad/s 2 and rps 2 are units of angular acceleration. 1 rps 2 = 2π rad/s 2
Rotational analogue of force is Torque
In case of body rotates clockwise, angular velocity is said to be negative.
If n is the frequency of rotation of a body, its angular velocity is ____. 2πn 4πn 2πn 4πn Answer: If... View Article
Net Torque is the product of moment of inertia and angular acceleration.
If a system is acted upon by a number of torques then clockwise torques are equal to anticlockwise torques.
In case of couples, couple can not be balanced by a single force.
