If you stand on the ground and hold your hand palm-up, the atmosphere (air surro

Question

If you stand on the ground and hold your hand palm-up, the atmosphere (air surrounding you) exerts a force of about 800 N on the palm of your hand. Compared to the following forces,

I. the force on the back of your hand,
II. the force on your palm when you are holding your hand vertically,
III. the force on your palm when you are holding your hand palm-down,

the 800-N force on your upraised palm is:

A equal to I but different from II and III

B Different from I,II, and III

C Equal tp II and III but different from I

D equal to I, II, and III

Explanation / Answer

C Equal tp II and III but different from I

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