| What next? Everything
that could go wrong
has gone wrong for Jack, our hapless hero. First his
tire went flat in the middle of nowhere, and now
he finds himself in a state of rotational
equilibrium!
While suspended in mid-air, he wonders what his truck weighs. Can you help him? Our hero weighs 800 N; the perpendicular distance between the pivot on the jack and Jack is 1.5 m. The distance between the pivot and the ratchet (which lifts the load) is 1.5 cm. How much weight is the jack (Jack Murphy?) lifting? May the torque be with you! |
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