problem04_41

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

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4.41: a) m. 4 . 4 ) s 025 . 0 )( s / m 10 0 . 8 ( ) s 025 . 0 )( s / m 10 0 . 9 ( ) s 025 . 0 ( 3 3 4 2 2 3 = × - × = x b) Differentiating, the velocity as a function of time is so , ) s / m 10 40 . 2 ( ) s / m 10 80 . 1 ( ) ( 2 3 5 2 4 t t t v × - × = 2 3 5 2 4 ) s 025 . 0 )( s / m 10 40 . 2 ( ) s 025 . 0 )( s / m 10 80 . 1 ( ) s 025 . 0 ( × - × = v s. / m 10 0 . 3 2 × = c) The acceleration as a function of time is , ) s / m 10 80 . 4 ( s / m 10 80 . 1 ) ( 3 5 2 4 t t a × - × = so (i) at , s / m 10
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Unformatted text preview: 1 , 2 4 × = = a t and (ii) , s / m 10 6.0 s) 025 . ( 2 3 × = a and the forces are (i) N 10 7 . 2 4 × = ma and (ii) N. 10 . 9 3 × = ma...
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