2003MechSolutions

# 2003MechSolutions - 2003 AP Physics Mechanics Exam 1 a b x=...

This preview shows pages 1–2. Sign up to view the full content.

2003 AP Physics Mechanics Exam 1) a) ( 29 s m v t t t dt d dt dx v t t x 2 0 2 2 3 2 2 1 2 2 1 2 3 3 = + = + = = + = b) i) ( 29 200 300 4 450 2 2 3 100 2 1 2 1 2 4 2 2 2 + + = + = = t t t mv K ii) ( 29 t t m t dt d m dt dv m ma F 300 3 2 2 3 2 = = + = = = iii) ( 29 t t t t Fv P 600 450 2 2 3 300 3 2 + = + = = c) ( 29 s m v s m v mv mv K W 2 8 2 2 2 3 2 1 2 1 0 2 2 2 0 2 2 = = + = - = = ( 29 ( 29 J K W 3000 2 8 100 2 1 2 2 = - = = d) The student does more than 3000 J of work on the box, and the box does work against the friction force. The total energy of the box increases by exactly 3000 J. Therefore the work done on the box by the student is greater than 3000 J, the answer to part (c). 2) a) gH v gH v Mv MgH 2 2 2 1 2 2 = = = b) ( 29 2 2 2 2 gH v M Mv v v M M Mv o o f f o = = = + = c) D Mg k Mg kD F M m k m T y = = - = = = 0 2 2 π g D D Mg M k m T 2 2 2 2 2 = = = d) The speed of the pan is a maximum when it is at the new equilibrium position

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 2

2003MechSolutions - 2003 AP Physics Mechanics Exam 1 a b x=...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online