Newtons Laws Of Motion

Question 1

What does Newton’s second law say

Answer 1

Acceleration is proportional to the force

Resultant force=ma

Question 2

What did Galileo say

Answer 2

All objects fall at the same rate (if you ignore air resistance)

Question 3

What did newtons 3rd law say

Answer 3

Each force had an equal, opposite reaction force
Swimmer pushes back water, water pushes you forward with equal but opposite sized forces

(Not book on table. Both acting on book, not same type, two separate interactions) resulting 0 acceleration, showing newtons 1st law

Question 4

What does Newton’s first law say

Answer 4

A (resultant) force is needed to change velocity (accelerate-change in direction or speed)