Showing posts with label momentum. Show all posts
Showing posts with label momentum. Show all posts

20.2.11

Momentum, Impulse, Work and Power

Remember we started out with three fundamental physical quantities, time, distance and mass.  From these we derived velocity and acceleration.  But there are more important concepts in mechanics that can be derived from these fundamental quantities.  



momentum = mass · velocity = kg · m/s

impulse = force · time = N · s = kg ·m/s

work = force · distance = N · m = kg·m²/s²

power = work/time= N · m/s = kg·m²/s³


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