Question

A balloon of gross weight w newton is falling vertically downward with a constant acceleration a( magnitude of the air resistance is :

Answer 1

Answer:

Weight of balloon = w

Let the air friction = f

mass of balloon, m = w/g

let the constant acceleration with which balloon is falling = a

Net force acting on balloon = weight - air fiction

ma= w-f

w/g. A = w - f

f = w - w/g a

f = w(1 - a/g)

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