2

• • Newton's 2nd Law is described as:
  • force = mass x acceleration
• • the law describes how:
  • acceleration is proportional to force on object
  • acceleration is inversely proportional to mass of object
  • resultant force increases if acceleration increases
  • if mass of object increases, acceleration decreases
• inertial mass:

  • ratio of force over acceleration
  • measure of how difficult it is to change velocity of object