in newtons law it states that for every action there is an opposite and equal reaction. but when i shine a flashlight the light gose foward but the flashlight dose not go back. Why?
2007-06-17 21:43:57 · 4 answers · asked by bass boy 2 in Science & Mathematics ➔ Physics
The momentum of the photons discharged from the flashlight is so small, you don't notice it. For a rough estimate, if you have a flashlight of one candlepower, the force exerted by the exiting light is 6.1371743 × 10^(-11) newtons.
2007-06-17 23:24:55 · answer #1 · answered by supastremph 6 · 0⤊ 0⤋
yes tats right, you'll only experience the opposite force equivalent to the original force. it means that light can pass in air medium easily hence the opposite force is also very insignificant magnitude.
if u hold the water hose from a fire truck, then u experience this opposite force since, water requires experiences some resistance to flow in the air medium
2007-06-17 22:08:00 · answer #2 · answered by rana_22_m 2 · 0⤊ 0⤋
As the light passes though it displaces energy with energy as an equal and opposite reaction to its motion.
2007-06-17 22:00:50 · answer #3 · answered by Steve C 5 · 0⤊ 0⤋
No movement of mass is involved.
2007-06-21 05:40:25 · answer #4 · answered by johnandeileen2000 7 · 0⤊ 0⤋