Unit+2+Newton's+Second+Law

=Newton's Second Law of Motion:=

Force = Mass x Acceleration
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According to Newton's second law...

 * ==Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).==

What does this mean?
Everyone unconsiously knows the Second Law. Everyone knows that heavier objects require more force to move the same distance as lighter objects. ||  ||   ||  ||   ||
 * [[image:accelerate.gif]] ||  ||
 * [[image:kickbrick.gif]][[image:ouch.gif]]
 * ===**However, the Second Law gives us an exact relationship between force, mass, and acceleration. It can be expressed as a mathematical equation:**===

[[image:fma.gif]]
or FORCE = MASS times ACCELERATION

Mike's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station, and he makes the car go 0.05 m/s/s. Using Newton's Second Law, you can compute how much force Mike is applying to the car.

Answer: 50 Newtons ||  ||

=What are Newton's?= Newtons are the SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one meter per second per second. [|How to Calculate Force]

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