Un paracaidista cae desde un helicóptero "detenido" a 1200 (m) de altura. A los 6 (s) e caer, abre el paracaídas y continúa bajando con velocidad constante igual a la que alcanza a los 6 (s). Dos segundos después de abrir el paracaídas, desde el helicóptero se dispara verticalmente un proyectil. ¿Cuál debe ser la velocidad inicial del proyectil para que pase frente al paracaídas, cuando se encuentra a 100 (m) de altura?
Respuestas
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