MCQOPTIONS
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MCQOPTIONS
| 1. |
While launching a rocket of mass 2√ó104 kg, a force of 5√ó105 N is applied for 20s. Calculate the velocity attained by the rockets at the end of 20s?# |
| A. | 3.6m/s |
| B. | 300m/s |
| C. | 120m/s |
| D. | 500m/s |
| Answer» E. | |