Pure maths, physics, logic (braingames.ru): non-trade-related brain games - page 81
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There is a simple explanation for this: the spring inside is just a distraction. This is the way any solid body works.
It's a composite body, and to move it anywhere, you have to apply that kind of force and no less.
It was on page 78. I guess it didn't work.
At 77.
F[M+m]=K*g*(M+m)
You can apply force to any box and in any direction - eventually both will start moving.
No. The process will stall. (sort of) How about an interchangeable vector solution?
It looks like I was wrong in my explanation: in fact, at such offsets, under real-world conditions, rest friction does not have time to change into sliding friction simply because the sliding will not even begin. The point is that the friction model we are using is very approximate and will not work at such offsets comparable to the size of the surface roughness.
Less. This force is only needed to push at a constant velocity. As Andrei has already admitted - pushing it out of place is enough.
Is less force than K*(M+m)*g enough to simply push a body of mass (M+m) off the ground?
The spring doesn't give a shit at all, it's part of the compound body. imho.
Is a smaller force than K*(M+m)*g enough to simply push a body of mass (M+m) off the ground?
Is a smaller force than K*(M+m)*g enough to simply push a body of mass (M+m) off the ground?
The spring absolutely doesn't give a fuck, it's part of a composite body. imho.
I propose that the correct solution is recognised by voting
There are already three of us.
What is to be found in this case? If the force is variable, the phrase 'minimum force' no longer makes sense.
I propose that the right decision be recognised through a vote
There are already three of us
The sly one. The right decision cannot become wrong by the will of the majority))