Asked by kitt
A 1.8×104 kg rocket has a rocket motor that generates 2.8×105 N of thrust.
What is the rocket's initial upward acceleration?
At an altitude of 5000 m the rocket's acceleration has increased to 6.3 m/s2 . What mass of fuel has it burned?
What is the rocket's initial upward acceleration?
At an altitude of 5000 m the rocket's acceleration has increased to 6.3 m/s2 . What mass of fuel has it burned?
Answers
Answered by
bobpursley
a) F=ma,
a=*thrust-rocketweight)/mass
a=*thrust-rocketweight)/mass
Answered by
Yesh
bobpursley missed the fact you would have to take into account gravity. So your answer for the first question is: a = ((2.8*10^5) / (1.8*10^4)) - 9.8
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