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Unformatted text preview: does it have more speed at the boKom? A.
B.
C.
D. Sliding (red path) Free fall (blue path) Neither  the ﬁnal speeds are equal I know what I’m supposed to say, but it doesn’t make sense A block can either slide fric>onlessly down a ramp (the red path) or fall oﬀ the end and go straight down (blue path). In which case does it have more speed at the boKom? A.
B.
C.
D. Sliding (red path) Free fall (blue path) Neither  the ﬁnal speeds are equal I know what I’m supposed to say, but it doesn’t make sense Three ways of looking at it N W W • Newton’s 2nd Law • Work kine>c energy theorem • Conserva>on of mechanical energy Three ways of looking at it N W W Newton’s 2nd Law FX = mg sin θ è༎ aX = g si...
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 Fall '08
 bennet
 Physics, Work

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