King Fahd University of Petroleum & Minerals
Department of Physics

Quiz 
Second Semester 1999-2000

Name:________________________________________ 		 Id #:____________

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Q:	Consider a force F acting on a particle with mass m = 1 kg and starting with a speed of 
4 m/s at x = 0.  

a)	Find the total work done by this force in moving the mass from x = 0 to x = 10 m .

b)	Find the final velocity of the mass m at x = 10 m.

King Fahd University of Petroleum & Minerals
Department of Physics

Quiz 
Second Semester 1999-2000

Name:________________________________________ 		 Id #:____________

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Q:	Consider a mass m = 1 kg at height h = 1 m on the top of an incline with q = 30o . If the mass starts from rest and moves down all along the incline find :

a)	The work done by gravity.

b)	The final velocity at the bottom of the incline if m = 0.5  .

King Fahd University of Petroleum & Minerals
Department of Physics

Quiz 
Second Semester 1999-2000

Name:________________________________________ 			 Id #:____________

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Q:	The coefficient of friction between the 4-kg mass and the surface in figure below is 0.5 . The system starts from rest.

a)	What is the work done by gravity on the 6-kg mass when it has fall 2 m ?

b)	Find the speed of the 6-kg mass when it has fallen 2 m ?