MCQOPTIONS
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MCQOPTIONS
| 1. |
A balloon with mass M is descending down with an acceleration a (a < g). What mass' of its contents must be removed so that it starts moving up with same acceleration a |
| A. | \[\frac{2M\left( g \right)}{a}\] |
| B. | \[\frac{M\left( g+a \right)}{g}\] |
| C. | \[\frac{Mg}{g+a}\] |
| D. | \[\frac{2Ma}{g+a}\] |
| Answer» E. | |