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Thelazysandwich
05.09.2019 •
Physics
Arocket initially at rest accelerates at a rate of 90 m/s 2 for 0.7 min. what is its speed at the end of this time? answer in units of m/s.
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Ответ:
Final speed of the rocket, v = 3780 m/s
Explanation:
It is given that,
Initial speed of the rocket, u = 0 (at rest)
Acceleration of the rocket,![a=90\ m/s^2](/tpl/images/0223/3059/89116.png)
Time taken, t = 0.7 min = 42 s
We need to find the speed at the end of this time. It can be calculated using first equation of motion as :
v = 3780 m/s
So, the speed of the rocket at the end at the end of 0.7 minutes is 3780 m/s. Hence, this is the required solution.
Ответ:
-Just sayin don’t get mad