P= 1000*(30/100)*9.81
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P= 1000*(30/100)*9.81
you mean the shaded areas should be equal , right?Sorry. Read All XZ as YZ. I was talking about the Flat area.
Distance YZ is constant.
If speed is high then YZ is covered quickly so t is less.
If speed is low (after rebound inelastic) YZ is covered in more time.
You must also compare area under vt graph. YZ is constant so area must remain constant.
Sorry but I don't get you.. can u shade for me the respective areas pleaseThe area between is the thermal energy dissipated. For a rubber, when it is extended they say that there is no permanent extension, however there will be heat exerted. The shaded area is the net work done and the area under the graph is the work recovered
Yes as that represents the distance YZ. If area changes then we have actually changed YZ which cannot happen.you mean the shaded areas should be equal , right?
The work recovered+ work not recovered= net work doneSorry but I don't get you.. can u shade for me the respective areas please
The question is asking for Power. The first 2 answers give KE which is wrong. Its is D because you have to take into account the diff in mass. C just considers M1.
How and why D?
Volume = 2000 * 10 = 20000
It is projectile motion, so the path is parabolic.
Why will the line NOT be part of a circle?
Because gravitational field strength hasn't changed.View attachment 54941
why doesnt g change
But then why do you need to consider the difference in mass? Won't you add the masses to get the total power? :SThe question is asking for Power. The first 2 answers give KE which is wrong. Its is D because you have to take into account the diff in mass. C just considers M1.
But it won't form a circle? Like the parabolic path is not part of any circle?Volume = 2000 * 10 = 20000
Mass = 20000 * 1.3 = 26000
KE = 0.5 * 26000 * 10^2 = 1300J
efficiency is 50% so answer is 650KW
It is projectile motion, so the path is parabolic.
afaik, a parabola can't be circle shaped.But it won't form a circle? Like the parabolic path is not part of any circle?
http://physics-ref.blogspot.in/2015/04/physics-9702-doubts-help-page-105.htmlCan someone please explain. This question pls
Why will the line NOT be part of a circle?
... and the path of the electrons after it exists the feild is always a straight line which is the tangent to the parabola formed before its exitIt can NEVER form a circle...usually thats the the wrong choice in MCQ
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