PHYSICS+11+CPH+CHAPTER+5+PART+I+ICE

THE INFORMATION BELOW COVERS ASSIGNMENTS I - III IN CHAPTER 5.

FOR THE TRICE, YOU NEED TO KNOW THIS MATERIAL PLUS CHAPTERS 4 AND 7.

DEFINITIONS of Work Kinetic energy Gravitational Potential energy

EQUATIONS for the above: Work = Fx cos (theta) KE = 1/2 mv^2 GPE = mgh

Law of Conservation of Work and Energy:

You need to identify which forms of energy are present in a given situation and to use the folloiwng to solve for unknowns:

KE + GPE + Work = KE' + GPE'

and (as in problem 29) that friction creates heat which is a form of energy which lowers the total amount of energy in the system.