MCQOPTIONS
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MCQOPTIONS
| 1. |
A 600 kg rocket is set for a vertical firing. If the exhaust speed is \[1000\text{ }m{{s}^{-1}}\], the mass of the gas ejected per second to supply the thrust needed to overcome the weight of rocket is |
| A. | \[117.6\text{ kg}{{\text{s}}^{-1}}\] |
| B. | \[58.6\text{ kg}{{\text{s}}^{-1}}\] |
| C. | \[6\text{ kg}{{\text{s}}^{-1}}\] |
| D. | \[76.4\text{ kg}{{\text{s}}^{-1}}\] |
| Answer» D. \[76.4\text{ kg}{{\text{s}}^{-1}}\] | |