Vector

Scalar + direction. Can be added and subtracted

Plane flying 500 mph east but 100 mph winds so resultant vector is 400 mph

To find where a plane is going when it’s 500 mph north but winds are blowing 200mph easy

A2+B2=C2

How do planes use vectors

Planes use vectors to compensate wind speed

Speed =

Distance/time

Bus ride speed= 42mi/1hr

Average speed vs instantaneous speed

Average- over a longer period time

Instantaneous- at one moment

Acceleration?

Change

Velocity/time

Example - 1block per second squared

Newton’s first law

Objects in motion stay in motion and objects in rest stay at rest unless a force acts upon it

Newtons 2nd law

The force applied to an object is directly proportional to its acceleration and force required to accelerate an object is proportional to its mass f=ma

If force ghost two times a mass stays the same acceleration ghost two times up

But if for stays the same and mask goes to times up acceleration goes up one half

Newton’s third law

What is static

Example of this law

For every push there is a pull

Static is no change/forces cancel out

Shooting a gun

Scalar

Measurements that compare quantity