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**Unformatted text preview: **s 3 . 15 and s 4 . 23 = = = + = x x y y y v v t a v v s m . 28 2 2 = + = y x v v v b) At the bottom of the hill, ( 29 . s m . 25 r r v ω = = The rotation rate doesn't change while the ball is in the air, after it leaves the top of the cliff, so just before it lands . s) 3 . 15 ( r = The total kinetic energy is the same at the bottom of the hill and just before it lands, but just before it lands less of this energy is rotational kinetic energy, so the translational kinetic energy is greater....

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