Newton’s First and Second Laws

• Newton‘s First Law:

  If the resultant force on a stationary object is zero, the object will remain stationary. If the resultant force on a moving object is zero, it’ll continue moving at the same velocity (same speed and direction)
• The velocity will only change if there’s a non-zero resultant force acting on the object
• A non-zero resultant force will always produce acceleration in the direction of the force. This can be starting, stopping, speeding up, slowing down or changing direction
• Newton’s Second Law;

  The larger the resultant force acting on an object, the more the object accelerates (they are directly proportional)
• Acceleration is also inversely proportional to the mass of the object- so an object with a larger mass will accelerate less than one with a smaller mass
• Resultant force (N) = Mass (kg) x Acceleration (m/s^2)