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a spherical weather balloon is filled with hydrogen until itsradius is 3.40 m. I

ID: 1723448 • Letter: A

Question

a spherical weather balloon is filled with hydrogen until itsradius is 3.40 m. Its total mass including the instrument itcarries is 13.0 kg.
what is the bouyant force acting on the balloon, If itsdensity is 1.29 km/m^3
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What is the net force acting on balloon and its instruments ifthe balloon is released from the ground
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what is the bouyant force acting on the balloon, If itsdensity is 1.29 km/m^3
_____________N
What is the net force acting on balloon and its instruments ifthe balloon is released from the ground
____________N

Explanation / Answer

The bouyant force acting on the balloon is            Fb = Vg               = (4/3 r2)g Here = 1.29 *103m/m^3           r =3.40m           g =9.80m/s2 The net force acting on balloon is          F = (4/3r2)g - mg Here m = 13.0 kg Substitute the values for F.