"Weightless in Air"
A juggler is invited to perform at a casino
on the opposite bank of a river. But the only boat available to bring him across can carry a maximum weight of 600 N. The
juggler weighs 590 N. The three dumbbells that he plans to juggle weigh 5 N each. "That's no problem," boasts the juggler.
"I can keep juggling all the way across so that one of the dumbbells is always in the air. That way I can bring all my dumbbells
with me and still keep to the weight limit." Will the juggler's strategy succeed? Use physics principle to prove your answer.
Reference: Introductory Physics: Building Understanding, Jerold Touger
 |

SOLUTION
 |