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givi [52]
3 years ago
7

Un ascensor sube con una velocidad constante de 2 m/s. Un niño que va en el ascensor lanza una piedra de 0.6 kg hacia arriba con

una velocidad de 5 m/s con relación al ascensor.
Obténgase:
a) el trabajo efectuado por el niño para lanzar la piedra,
Physics
1 answer:
Natasha_Volkova [10]3 years ago
6 0

Answer:

W = 7.5 J

Explanation:

W = KE

W = ½mv² = ½0.6(5²) = 7.5 J

Niño, piedra y ascensor están todos en el mismo marco de referencia inercial.

los 2 m / s no son importantes.

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alina1380 [7]

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