if it is fired to change the velocity of a 85000 kg space craft by 93 cm/s, how long should it be fired?

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if it is fired to change the velocity of a 85000 kg space craft by 93 cm/s, how long should it be fired?

Small rockets are used to make small adjustments in the speed of satellites. One such rocket has a thrust of 55N. if it is fired to change the velocity of a 85000 kg space craft by 93 cm/s, how long should it be fired? answer in seconds.

make sure cm is converted to m/s

2007-11-25 14:10:38 · 2 answers · asked by XzoeyX 2 in Science & Mathematics ➔ Astronomy & Space

2 answers

a = F / m
a = 55N / 85000 kg = 6.471E-4 m/s^2
dv = 0.93 m/s
dt = dv / a
dt = 1437.3 sec

2007-11-25 15:30:46 · answer #1 · answered by elohimself 4 · 0⤊ 0⤋

sorry, but I'm brain dead right now. you know too much turkey and dreaming about space

2007-11-25 23:25:06 · answer #2 · answered by Mercury 2010 7 · 0⤊ 0⤋