Physics
posted by CJ .
I'm having trouble understanding which formula to use to answer this question. What is the apparent weight of an astronaut weighing 77kg shortly after blasting off in a roacket at an upward acceleration of 80/meters per second squared? I know he/she will feel about 3 times heavier and I know the answer will be in newtons, but what formula do I use?

W=m(g+a)
Newtons second law.