.2 Newton’s Second Law:

• The acceleration of an object is proportional to the resultant force acting on the object, and inversely proportional to the mass of the object.
• as an equation 


  resultant force = mass × acceleration

  F  = m a

  force, F, in newtons, N

  mass, m, in kilograms, kg

  acceleration, a, in metres per second squared, m/s2