| Phred Phantastic, the all-around physics student, is lifting masses in the Physics Gym. Phred knows his limits; when he reaches the maximum mass, he begins to pheel phunny!
What upward force will Phred have to exert if the maximum mass he can lift is 820 kg? Oh, by the way, I forgot to tell you that the Physics Gym is on the moon, where the value of "g" is 1.6 m/s2! |
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