4H - Newton's Second Law

Newton's second law says that if an object has an unbalanced force applied to it then it will accelerate in the direction of that unbalanced force. The size of the acceleration depends upon the mass of the object. Objects that are bigger are harder to accelerate and more difficult to stop once they start moving. Smaller objects are easier to accelerate and easier to stop.

Remember that unbalanced forces cause accelerations and decelerations.

We worked on the second type of F = ma calculations today. These are when more than one force is given so it necessary to calculate the unbalanced force first before using the equation.