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Question
h মিটার উচু স্থান থেকে একটি বস্ত পড়ছে । কোথায় তার গতি-শক্তি স্থিতি-শক্তির অর্ধেক হবে ?
h/3 m
2h.3 m
3h/2m
h/2m
4h/3 m
ANSWER : 1
Descrption
<p style="margin-left:0px;">correct ans b</p><p style="margin-left:0px;"><img src="https://testmozusercontent.com/ugc/2022-12-13/35948858-3207-40fb-9afb-3f58a4ae09d2-image.png">ধরি, x উচ্চতায় এর গতিশক্তি বিভবশক্তির অর্ধেক হবে</p><p style="margin-left:0px;">বিভবশক্তি গতিশক্তি অর্ধেক,</p><p style="margin-left:0px;">তাই, বিভবশক্তি,u= k/2, গতিশক্তি, k</p><p style="margin-left:0px;">অতএব, U+K= mgh</p><p style="margin-left:0px;">বা, K/2 +K=mgh</p><p style="margin-left:0px;">বা, 3K/2 =mgh</p><p style="margin-left:0px;">বা,3mgx=2 mgh</p><p style="margin-left:0px;">বা, 3x = 2h</p><p style="margin-left:0px;">বা, x= 2h/3 </p><p style="margin-left:0px;"> </p><p style="margin-left:0px;">when গতিশক্তি বিভবশক্তির 2x হবে . that time the answer will be 1</p>
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