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8. A spherical rubber balloon inflated with air is heldstationary, with its opening, on the west side, pinchedshut. (a) Describe the forces exerted by the air insideand outside the balloon on sections of the rubber(b) After the balloon is released, it takes off towardthe east, gaining speed rapidly. Explain this motionin terms of the forces now acting on the rubber.(c) Account for the motion of a skyrocket taking offrom its launch pad

Question
8. A spherical rubber balloon inflated with air is held
stationary, with its opening, on the west side, pinched
shut. (a) Describe the forces exerted by the air inside
and outside the balloon on sections of the rubber
(b) After the balloon is released, it takes off toward
the east, gaining speed rapidly. Explain this motion
in terms of the forces now acting on the rubber.
(c) Account for the motion of a skyrocket taking of
from its launch pad
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8. A spherical rubber balloon inflated with air is held stationary, with its opening, on the west side, pinched shut. (a) Describe the forces exerted by the air inside and outside the balloon on sections of the rubber (b) After the balloon is released, it takes off toward the east, gaining speed rapidly. Explain this motion in terms of the forces now acting on the rubber. (c) Account for the motion of a skyrocket taking of from its launch pad

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Step 1

(a)

According to molecular theory, the (particles) air inside the balloon pushes outward on each patch of rubber walls, exerting a small force perpendicular to that section of area.

These collisions occurs the entire balloon and it gives a definite shape to the balloon, the air outside pushes perpendicularly inward, but not quite strong.

Step 2

(b)

There is rubber on both top and bottom of the balloon, therefore the forces that acts on that rubber can cancel out, hence the balloon does not accelerate up or down.

Since t...

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