problem02_15 solution

University Physics with Modern Physics with Mastering Physics (11th Edition)

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2.15: t dt dx v x ) s cm 125 . 0 ( s cm 00 . 2 2 - = = 2 s cm 125 . 0 - = = dt dv a x x a) . s cm 125 . 0 , s cm 00 . 2 cm, 0 . 50 , 0 At 2 - = = = = x x a v x t b) s. 0 . 16 : for solve and 0 Set = = t t v x c) Set x = 50.0 cm and solve for t . This gives s. 0 . 32 and 0 = = t t The turtle returns to the starting point after 32.0 s. d) Turtle is 10.0 cm from starting point when x = 60.0 cm or x = 40.0 cm. s. 8 . 25 and s 20 . 6 : for solve and cm 0 . 60 Set = = = t t t x . s cm 23 .
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Unformatted text preview: 8 . 25 At . s cm 23 . 1 s, 20 . 6 At -= = + = = x x v t v t Set cm . 40 = x and solve for s 4 . 36 : = t t (other root to the quadratic equation is negative and hence nonphysical). . s cm 55 . 2 s, 4 . 36 At -= = x v t e)...
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  • Quadratic equation, Elementary algebra

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