A boxer can hit a heavy bag with great force. why can't he hit a piece of tissue paper in midair with the same amount of force? a boxer can hit a heavy bag with great force. why can't he hit a piece of tissue paper in midair with the same amount of force? the boxer can only hit the tissue paper with a force as large as the tissue paper can exert on the boxer, and the low-mass tissue can only exert a weak force. the tissue paper can only exert a force on the boxer as large as the air resistance force exerts on the paper. the low-mass tissue exerts a smaller reaction force on the boxer than the action force the boxer exerts on the tissue. the low-mass tissue floating in the air exerts no reaction force on the boxer.

Question

Physics

Armstrong

4 September, 18:59

A boxer can hit a heavy bag with great force. why can't he hit a piece of tissue paper in midair with the same amount of force? a boxer can hit a heavy bag with great force. why can't he hit a piece of tissue paper in midair with the same amount of force? the boxer can only hit the tissue paper with a force as large as the tissue paper can exert on the boxer, and the low-mass tissue can only exert a weak force. the tissue paper can only exert a force on the boxer as large as the air resistance force exerts on the paper. the low-mass tissue exerts a smaller reaction force on the boxer than the action force the boxer exerts on the tissue. the low-mass tissue floating in the air exerts no reaction force on the boxer.

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Rodrigo Robinson · Answer 1

The boxer can just hit the tissue paper with a force as extensive as the tissue paper can apply on the boxer, and the low mass tissue can just apply a weak force.

Let a boxer hitting on heavy bag. The boxer hits the bag while the bag hits back on the boxer and stops its movement. A pair of forces is engaged with the hitting the bag. The force pair can be quite large.

Now considering boxer hitting a bit of tissue paper. The boxer can just apply as much force on the tissue paper as the tissue paper can apply on the boxer.

The boxer can't apply any force whatsoever except if what is being hit applies a similar amount of force back. An interaction requires a pair of forces acting on two separate objects.