صدى السعادة
05-22-2008, 09:22 PM
السلام عليكم ورحمة الله
لدي سؤال اتمنى ان تقضوا يا علماء الفيزياء وقتاً ممتعا في حلة
arocket has an initial mass 20000 kg . 20 %of the mass is the payloud
it burns fuel at arate of 400kg \s and exhaust gas at arelative speed ve=2km\s if the velocity of the rocket relative to the earth is given by (assume inital velocity =0)
v=ve ln (mi\m )
mi is initial mass
m . mass at time T
v . velocity at time T
find
the maximum velocity ?:16::16::16::16:
لدي سؤال اتمنى ان تقضوا يا علماء الفيزياء وقتاً ممتعا في حلة
arocket has an initial mass 20000 kg . 20 %of the mass is the payloud
it burns fuel at arate of 400kg \s and exhaust gas at arelative speed ve=2km\s if the velocity of the rocket relative to the earth is given by (assume inital velocity =0)
v=ve ln (mi\m )
mi is initial mass
m . mass at time T
v . velocity at time T
find
the maximum velocity ?:16::16::16::16: