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Una barcaza de masa m 1 = 1 , 5 1 0 5 k g navega directamente hacia el este a una velocidad v 1

Una barcaza de masa m1=1,5105kg navega directamente hacia el este a una velocidad v1=6,2ms en un mar
tranquilo. Debido a una densa niebla y escasa visibilidad existente, choca contra otra barcaza de masa m2=2,8
x105kg que viaja hacia el norte a una velocidad v2=4,3ms. Inmediatamente despus del choque, la segunda
barcaza sufre una desviacin en un ngulo =18 hacia el este respecto a su direccin original y su velocidad
aumenta a v2'=5,1ms. Determine:
a) Magnitud y direccin de la velocidad de la primera barcaza, inmediatamente despus del chque.
b) La energa que se perdi en el choque.
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