# Impulse, Momentum and Inertia Flashcards

What are the 5 suvat equations of motion?

v = u +at

s = ut + 1/2at^2

s = vt - 1/2at^2

s = 1/2 (u + v)t

v^2 = u^2 + 2as

What is inertia?

An object will stay in it’s motion unless acted upon by an external force

How do you calculate the first moment?

mass x distance from the axis

How do you calculate the second moment?

mass x square of distance from axis

What is the centroid?

The geometrical centre of a body

What is the equation for linear momentum?

mass x velocity

What is the equation for angular momentum?

angular velocity x moment of intertia

Is momentum a conserved quantity?

Yes

What is impulse?

Impulse is a certain amount of force you apply for a certain amount of time to cause a change in momentum

What is the equation for impulse?

change in momentum = Force x time

/\ p = Ft —-> mv = Ft