Mathematics · Mechanics - Friction
एक व्यक्ति अपने हाथों के बीच 10 N वजन वाली एक किताब पकड़ता है और दोनों हाथों से किताब पर क्षैतिज रूप से 25 N का बल लगाकर उसे गिरने से रोकता है। किताब और उसके हाथों के बीच घर्षण गुणांक कितना है?
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