Answer to Question #77817 in Classical Mechanics for Charvi

Question #77817

Holding a bottle in air by hand indicates that net force on bottle is 0
But we are applying a force to keep it in air then it is not moving

Expert's answer

There are two forces: the weight of a bottle and the contact force exerted by our hand. These forces are not zero but when the bottle doesn’t move the net force is zero.

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Comments

Assignment Expert

11.09.18, 21:01

Dear Charvi, the first one is the bottle's weight (it acts on your hand with it's weight). And you must compensate this force with your arm, so yes, the second force is "the force which we are constantly applying in upward direction of bottle to equal its weight".

Charvi

11.09.18, 12:50

So there are 2 forces One is what we applying by our hands ie we pressing it or holding it (bottle) And second is the force which we are constantly applying in upward direction of bottle to equal its weight Actually i want to confirm what i have understood from the ans is correct or not

Assignment Expert

06.06.18, 18:22

yes

Charvi

06.06.18, 18:11

So is that so that we balance the weight of bottle by our applied force in upward direction