A 25600 kg rocket has a rocket motor that generates 297400 N ofthrust. What is t
ID: 1736253 • Letter: A
Question
A 25600 kg rocket has a rocket motor that generates 297400 N ofthrust.What is the rocket?s initial upward acceleration?
Tries 0/3
At an altitude of 4920 m the rocket?s acceleration hasincreased to 2.537 m/s2 What mass of fuel has itburned?
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Tries 0/3
Explanation / Answer
A 25600 kg rocket has a rocket motor that generates 297400 N ofthrust. What is the rocket?s initial upward acceleration? force= mass times acc 297400=a(25600)>> a=11.62m/s2 upward acc= 11.62-9.81 = 1.81 At an altitude of4920 m the rocket?s acceleration has increased to 2.537m/s2 What mass of fuel has it burned? force remains constant so 297400=(9.81+2.537) x m m= 24086.7 mass lost=25600-24086.7=1513.3 kg
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