newtons laws of motion

speed description

describes the distance traveled over a period of time

speed equation

s = distance / time

velocity description

similar to speed, but involves direction (change in position over change in time)

velocity equation

change in position or velocity (s) / change in time (t)

acceleration description (not newton law)

describes how velocity changes over time

acceleration equation (not newton law, aspect of linear motion)

a = (v-u) / t

(final velocity - initial velocity) / time

angular velocity description

describes how quickly an object is rotating around the axis

angular velocity equation

w (angular velocity) = velocity / radius

angular acceleration description

describes how the change in angular velocity over a period of time

• (how the change of an object rotates over time)

two factors that impact the result motion of an object

net force and mass

three newton laws

• 1. inertia

• 2. acceleration

• 3. reaction

inertia (1st)

maintains velocity until a force alters its speed or direction

acceleration

the acceleration of an object is the same direction as the force applied to it

acceleration equation (2nd law)

force = mass x acceleration

reaction (3rd)

same force you apply will be applied back to you

which law applies to stability?

the first law (inertia)

which law applies to summoning joint forces?

the second law (acceleration)

which law applies to linear momentum?

the first law (inertia)

which law applies to impulse?

the second law (acceleration)

which law applies to angular momentum?

the first law (inertia)

stability impacts

helps people remain upright and prevents movement

• size of base (more wide = more stable)

• mass of body

• location of center mass

summoning joint forces description

how multiple joint actions occur at the same time and plane

• generates force

linear momentum description

Linear momentum is simply "mass in motion"—it tells you how hard it is to stop a moving object.

linear momentum equation

linear momentum (p) = mass x velocity

impulse description

a measure of force applied over time

impulse equation

Joules (J)= force x change over time

angular momentum description

the tendency of an object to continue to rotate

angular momentum equation

angular velocity x momentum of inertia