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A research balloon of total mass M is descending vertically with downward acceleration a. how much ballast must be thrown from the car to give the balloon an upward acceleration a, assuming that the upward life of the air balloon does not change.
I figured that
let Fu = upward lift force
Fnet = Fg - Fu = mg - ma
and Fg must be greater than Fu since there is downward acceleration
I'm not sure if I want to use big M to represent the mass I throw out
or use little m and it be a separate quantity from the balloon.
I'm unsure of how to proceed from here,
any help is much appreciated
Thanks,
I figured that
let Fu = upward lift force
Fnet = Fg - Fu = mg - ma
and Fg must be greater than Fu since there is downward acceleration
I'm not sure if I want to use big M to represent the mass I throw out
or use little m and it be a separate quantity from the balloon.
I'm unsure of how to proceed from here,
any help is much appreciated
Thanks,