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Conceptual Problem

The problems in this section will  assess your knowledge of the basic concepts in Physics as applied to different physical situations. You do not need to give numerical solutions to these problems but you are encouraged to use equations, graphs and diagrams to explain/illustrate your answer. One conceptual problem will be posted per week.
 

"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

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