Momentum, Impulse, Rotationals and all

yeah all that shite

Momentum

quantity that describes the motion of object and describes how hard something is to stop.

It is equal to the product of mass and velocity

P=mv

Impulse

described as the change of a momentum of an object. has the unit Ns

-From newton’s second law of motion, the force can also be written in terms of momentum rather than acceleration

conservation of momentum

in the fifth century, physicists conducted different experiments to describe the motion of colliding objects.

Describes the force applied towards the moving objects or stabilize

Law of conservation of momentum

if the net external force acting on a system or object is zero, then the total momentum of the system remains unchanged

Collusion

event where two or more bodies hit

Rotational kinematics

angular velocity, angular acceleration, and time.

concerned about rotation and its measurements

Rotational dynamics

study of rotating objects resulting from external force and their torques

Rotational equilibrium

happens when the system is at rest or has a constant angular velocity

Torque

A twisting or rotational force that causes an object to rotate around on an axis

2 pi r

circumference is equal to:

2 pi (rad)

1 rev is equal to

torque angular acceleration relation

newton’s second law

Net torque is directly proportional to its angular acceleration and its movement inertia

Static equilibrium

state of rest where no movement occurs within the system

sum of all external forces must be zero

work done by torque

used to calculate the energy transformed to or from rotating a system

rotational kinetic energy

energy that an object possesses due to its rotation

Angular momentum

measure of an object’s tendency to keep rotating

conservation of angular momentum

conserved if there are no external torques acting on a system