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How much height should the obstacle so that ball will be in equilibrium |
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Answer» An easy way to solve this Multiple CHOICE Question is just by trial and error. As we can know for a fact that if theta=0" role="PRESENTATION" style="margin: 0px; padding: 0px; outline: 0px; display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 14px; text-indent: 0px; text-align: left; text-transform: NONE; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; POSITION: relative;">theta=0theta=0 then H should be equal to zero. So by substituting the theta value as zero in the options given to find out the satisfying equation, which turns out to be option D. |
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