Newton's Laws of motion

Newton's Laws of motion

1. 1) Every object persists in a state of rest or uniform motion unless compelled to change that state by forces acting on it

   • note for Newton
   • EXAMPLE: an object on a table won't go anywhere as the forces on it are balanced reaction(R)(force of table pushing object up)=weight(mg) (force of gravity pulling oblect down

2. 2) Acceleration is proporional to force

   • Resultant force(N)= mass(kg)xacceleration(m/s2)
     • F=mxa
     • more force= more acceleration ( for a certain mass)
     • more mass = less acceleration (for a given force)

3. 3) For every action there is an equal and opposite reaction

   • REMEMBER: forces are the same size and the same type!
     • Forces act on different bodies and act in the opposite direction