before you step your momentum is zero then you step and now you have some momentum.
is the principles of conservation of momentum violated?
Explain
i think the answer is no but i dont know how to explain it
2007-12-03 11:05:09 · 5 answers · asked by confused 1 in Science & Mathematics ➔ Physics
one momentum please...
When you begining to step you have a positive momentum when you slowdown the momentum vector changes direction. So momentum is conserved.
This can be expressed as
mV1-mV2=0
2007-12-03 11:08:35 · answer #1 · answered by Edward 7 · 1⤊ 0⤋
The answer is no. The momentum causes an equal increase in th Earth's momentum in the opposite direction. Since the Earth is so much more massive, it is negligible.
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2007-12-03 11:09:21 · answer #2 · answered by odu83 7 · 0⤊ 0⤋
momentum = force * velocity
Walking is basically a processes or falling and then catching yourself. So you wanna start walking. You move your muscles, you lean forward and now you are falling with a certain momentum, your foreward momentum has now increased. To stop, you put your foot out and you muscles will absort the energy or momentum of your movement. Energy was always gained or lost because of equal and opposite reactions.
Physics is great. Never stop wondering dude!
2007-12-03 11:19:32 · answer #3 · answered by John 2 · 0⤊ 1⤋
the ground moves back. The effect is not visible since the mass of the earth is very large so the velocity of the ground is neglegible. The principle of cnservation is not violated.
2007-12-03 11:09:20 · answer #4 · answered by Anonymous · 0⤊ 0⤋
no. you push on the ground but the earth has a mass that is so massive that no movement is actually noticed.
its like spitting in the ocean. you know you add water to it but there is no noticable difference.
2007-12-03 11:10:41 · answer #5 · answered by Anonymous · 0⤊ 0⤋