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LeKahlua
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Mcat Physics Question: A 10 kg. mass is in free fall with no air resistance. In order to slow the mass at a rate equal to the magnitude of g, an upward force must be applied with magnitude:
0 N, 10 N, 100 N, or 200 N.
I solved if F=mg then F=10*10 or 100 N downward force. Therefore an upward force of 100 N resistance would be required. Why is the answer 200 N? Answer book says you want a net force of mg=100 N upwards but I'm not sure why 200 N upward is equal to a magnitude of g, which is only 100 N downward. What am I missing here?
Leigh
0 N, 10 N, 100 N, or 200 N.
I solved if F=mg then F=10*10 or 100 N downward force. Therefore an upward force of 100 N resistance would be required. Why is the answer 200 N? Answer book says you want a net force of mg=100 N upwards but I'm not sure why 200 N upward is equal to a magnitude of g, which is only 100 N downward. What am I missing here?
Leigh