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Question
10kg ভরের পড়ন্ত বস্তুর ত্বরণ কত,যখন বাতাসের বাধা 78N?
2.2
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2
2.5
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2
3.0
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1.5
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None
ANSWER : 1
Descrption
<p style="margin-left:0px;"><strong>2.2m/s^2</strong>।</p><p style="margin-left:0px;">প্রথমে, বস্তুর ওজন নির্ণয় করতে হবে:</p><p>W = mg</p><p>W = 10kg * 9.8m/s^2</p><p>W = 98N</p><p style="margin-left:0px;">এরপর, বস্তুর উপর মোট বল নির্ণয় করতে হবে:</p><p>F = W - B</p><p>F = 98N - 78N</p><p>F = 20N</p><p style="margin-left:0px;">এরপর, বস্তুর ত্বরণ নির্ণয় করতে হবে:</p><p>a = F / m</p><p>a = 20N / 10kg</p><p>a = 2.2m/s^2</p><p style="margin-left:0px;">অতএব, 10kg ভরের পড়ন্ত বস্তুর ত্বরণ <strong>2.2m/s^2</strong> হবে, যখন বাতাসের বাধা 78N।</p>
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