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

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8.104: a) Including the extra force, Eq. ( 29 37 . 8 becomes , ex mg dt dm v dt dv m - - = where the positive direction is taken upwards (usually a sign of good planning). b) Diving by a factor of the mass , m . ex g dt
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Unformatted text preview: m v dt dv a--= = c) 20 . s m 2 . 10 s m 80 . 9 s m 2 2 2 =-d) 3327 s m ( 29 , s km 2.45 90 ) m/s (9.80 2 =-which is about three-fourths the speed found in Example 8.17....
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  • Mass, Trigraph, dt dt, dt m dt

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