Slide 5

Newton's Second Law



                                                                             (The above picture was taken from http://library.thinkquest.org/23678/newton.html)

If a 50 kg man is making his way down the mall at a brisk pace of 2 meters per second what is the force acting on him? How do we go about solving this?

Well according to Newton’s Second Law, the change in momentum is equal to the force. In other words force is equal to mass times acceleration.⁴

^{F=ma




















so}

^{F=(50kg)(2m/s)}

^{= 100
Newtons}