A student eats a dinner contaning 8.0×10⁶J of energy. He wishes to do an equivalent amount of work in a near by gym by lifting a 60 kg object to expand this much energy? Assume that he raises it a distance of 2.0m each time.
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Ответ:
6802 times
Explanation:
W = F x S
8 x 10⁶ = n x 60 x 9.8 x 2
n = 8 x 10⁶ / 1176
n = 6802 (approx.)
Ответ:
0.26666666666 miles per hour