Q-1: Weight of Body on False Balance Q-2: Maximizing Energy in Swimming

AI Thread Summary
The discussion addresses two physics questions: the true weight of a body on a false balance and energy expenditure in swimming across a river. For the first question, the true weight can be determined by analyzing the weight discrepancies on the false balance. The second question explores why maximum energy is expended in the second third of the swimming distance, likely due to factors such as fatigue and water resistance. Participants are reminded to show their attempts at solving these problems to receive assistance. Engaging with these concepts enhances understanding of physics principles in practical scenarios.
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Q-1 : A bodu weighs 8 gm when placed in one pan and 18 when placed on a other pan of a false balance . If the beam is horizontal when both the pans are empty , the true weight of the body is

Q-2 : when one swims across a river max. energy is spent in second 1/3 of the distance why ?
 
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