acceleration=force/mass
force= 3.5*(3.5E6+1.8E6) N
What thrust is needed to give a 3.5*10^6 kg rocket carrying 1.8*10^6 Kg of cargo at an acceleration of 3.5m/s2?
10 answers
F = m a
T-(5.3*10^8*9.81) = 5.3*10^8(3.5)
or
T = 5.3*10^8 * (9.81+3.5)
T-(5.3*10^8*9.81) = 5.3*10^8(3.5)
or
T = 5.3*10^8 * (9.81+3.5)
Thats the answer i had but my teacher stated that was incorrect
it depends on what your teacher assumes: is the rocket working on the surface of Earth upward (overcoming gravity), or in free space.
i believe free space. Im just really confused on how to do this
could there be any other answer to this?
free space, go with the answer I posted. On Earth, you have to subtract mg to get net force.
could you show me how you do it for on earth?
just not sure what you mean by subtract mg
I did it for on earth. Bobpursley did it for in space with no gravity.