Twice the inertia? Twice the weight (when weighed in the same location)?
2007-03-07 20:27:38 · 9 answers · asked by eqlar 3 in Science & Mathematics ➔ Physics
I know that it is twice the mass but I don't understand the concept of inertia.. so I can't answer this question confidently. Also, I don't know how to go from mass to weight so I don't know how I would be able to tell if it was twice the weight.
Please explain if you can! :D
2007-03-07 20:33:31 · update #1
if we are talking about mass weight, then yes!
2007-03-07 20:30:44 · answer #1 · answered by exo 7 · 1⤊ 0⤋
Yes it is, but the best way to understand the concept of inertia is this, imagine the rock in the outer space, and the space shuttle beside it, of course the space shuttle on the ground is heavier than your 1 kg rock but in the outer space they don't have weight, now imagine both of them traveling at a high speed and now you try to stop them the 1 kg rock will need less power to stop it, but not the space shuttle you will need a lot of power to stop that big mass. In space there is no weight but if you apply a force to the body(acceleration)it will weight because it has mass.(remember that gravity is acceleration or acceleration is gravity) any acceleration input to the rock is the same as to apply gravity. other example if you have a piece of paper big enough to weight 100 kg and it is in the outer space and a rock of 100kg you will need the same amount of trust to stop them, density it does't apply when you talk about mass.
I hope I answered your question or have a better idea
Cheers
2007-03-07 21:33:54 · answer #2 · answered by Santiago Beau.. 2 · 1⤊ 0⤋
By weight, as already stated, yes. If by density, maybe not. 1 kilogram of anything is still going to be half the weight of anything that weighs 2 kilograms of anything. The inertia maybe different based on density.
2007-03-07 20:34:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Absolutely yes to the mass and weight.
"It depends" to the inertia.
2007-03-07 20:33:07 · answer #4 · answered by Curt Monash 7 · 0⤊ 0⤋
ah yes...
Is there any doubt in your mind that 2 kilograms is double 1 kilogram?
2007-03-07 20:31:20 · answer #5 · answered by flywho 5 · 1⤊ 0⤋
Yes, of course.
2007-03-07 20:31:31 · answer #6 · answered by Wendy 5 · 0⤊ 0⤋
W1=m1*g1=2 kg
W2=m2*g2=1 kg
If surroundings are same in both cases, we have
g1=g2=g.
W1/W2=m1*g/m2*g=2.
Check me if I am wrong.
2007-03-07 20:33:00 · answer #7 · answered by HaK 1 · 0⤊ 0⤋
Ofcouse. Why doubt?
2007-03-07 20:31:08 · answer #8 · answered by ashoke 2 · 1⤊ 0⤋
Some rocks are heavier than other so the answer is no.
2007-03-07 20:31:22 · answer #9 · answered by IYARI 2 · 0⤊ 2⤋