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Two stones of masses 50g and 250g are dropped from a height of 100m simultaneously. What will be the ratio of time taken by them to touch the ground? (Take g=10 m per sec square) |
Answer» <html><body><p><strong>Explanation:</strong></p><p>If <a href="https://interviewquestions.tuteehub.com/tag/air-852233" style="font-weight:bold;" target="_blank" title="Click to know more about AIR">AIR</a> <a href="https://interviewquestions.tuteehub.com/tag/resistance-1186351" style="font-weight:bold;" target="_blank" title="Click to know more about RESISTANCE">RESISTANCE</a> is proportional to mass of the body, then acceleration due to it will be independent of mass and hence the two bodies will reach ground simultaneously.</p><p>a= </p><p>m</p><p>mg−f </p><p><a href="https://interviewquestions.tuteehub.com/tag/aia-1961842" style="font-weight:bold;" target="_blank" title="Click to know more about AIA">AIA</a></p><p> = </p><p>m</p><p>mg−mα</p><p> =g−α</p><p>This acceleration is independent of mass and hence same <a href="https://interviewquestions.tuteehub.com/tag/time-19467" style="font-weight:bold;" target="_blank" title="Click to know more about TIME">TIME</a> will be required.</p></body></html> | |