Jack can just lift 62kg on earth. he is now abducted by aliens and taken to their planet. (after the probing) Jack finds that on their planet he can only lift 22kg. what is the maximum WEIGHT Jack can lift on earth?
Umm I don't know about that one Chris
62Kg is a mass not a weight. (corrected)
1Kg=9.8N ON EARTH
62Kg=607.6N ON EARTH
Technically Jack can lift a maximum weight of 607.6N (It would be the same on the alien planet)
That sounds right to me anyway
If Jack can lift a mass of 62kg on Earth, then he is lifting a weight of 62*9.8 N (= 607.6N).
Gravitational acceleration on the alien planet is 9.8*62/22 m/s2 (= 27.6 m/s2)
This “planet” has a gravity field higher than Jupiter. His whole body will “feel” nearly three times heaver. Unless this man was built like Arnold Schwarzenegger, he probably wouldn’t be able to lift his head without breaking his neck.