**Unformatted text preview: **T, t x-= we find ) m/s 35 . 7 ( 2 ) 9 . 4 )( m/s 35 . 7 )( 4 ( ) m/s 80 . 9 ( ) m/s 80 . 9 ( 2 2 2 2 2 2 T T T T t x + + =-= or . 72 . 2 T t = Now, using the condition that , x x m 1000 plane rocket =-we find m, 1000 ) m/s 236 ( ) ( m/s 7 . 12 ( m/s) 236 ( 2 2 =--× + t T t ) t or . s 6 . 78 ) 72 . 1 ( 2 2 = T Therefore s. 15 . 5 = T...

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