Forces & terminal velocity

What are forces?

vectors which have a size and direction

Equation for working out force?

mass x acceleration

how do you work out weight (newtons)?

mass x gravity

explain terminal velocity

you accelerate and so speed increases. Speed increases and so does drag, eventually meaning the resultant force is zero and so no more acceleration can happen, you have then reached the max speed in freefall

explain a parachut

parachute increases surface area, increases drag, creates a resultant force upwards, so person decelerates

Newtons first law

an object remains in the same state of motion unless a resultant force. If all the forces are balanced, the resultant force is zero.

Newtons second law

An object will accelerate (change its velocity) in response to a resultant force