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Un cuerpo de 5kg baja 1,5m deslizndose por una larga rampa rugosa e inclinada 12 bajo la horizontal. El coeficiente de roce cintico entre el

Un cuerpo de 5kg baja 1,5m deslizndose por una larga rampa rugosa e inclinada 12 bajo la horizontal. El coeficiente de roce cintico entre el paquete y la rampa es 0,31.

(a) Calcule el trabajo realizado sobre el paquete por el roce,el peso y lafuerza normal,

(d)Calcule el trabajo neto sobre el paquete.

(c) Si el cuerpo tiene una rapidez de 2,2m/s en la parte superior de la rampa, qu rapidez tiene despus de bajar deslizndose 1,5m medidos sobre el plano?

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