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Unformatted text preview: mass x gravity so you can write: F = ma mass x gravity = mass x acceleration now mass will cancel out from both side gravity = acceleration hence acceleration (change is velocity) does not depend on mass (c) s = 10meters v(initial) = 5.70m/s v(final) = ? a = 9.8m/s 2 (assume down is positive) v(final) 2 = v(initial) 2 +2as v(final) 2 = 5.70 2 +2(9.8)(10) v(final) = 15.1158857 m/s Response Details: Note: For this problem, we will use conservation of energy (a) Note: The mass of the book does not matter when using energy conservation, thus, it cancels out Note: The initial kinetic energy is zero because it was dropped (b) As stated previously in part (a), the mass of the book does not matter, thus, its speed would be the same as it was in part (a) (c)...
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This note was uploaded on 01/13/2010 for the course ABC BTUN80809 taught by Professor Mr.chuck during the Spring '09 term at McGill.
- Spring '09