i surely agree that i have made an error in stating the problem... well i wrote it up in my own words and may be some parts of it were not clear... but here are some essential points which i stress again-
1. the cow may not enter into the fence.
2. the cow is tied to a fixed point on the...
No, the problem means that the rope winds up... because the point where the cow is tied up is fixed, and the i think we need to evaluate a tricky integral to get the answer... which i am unable to do...
the the rope can wind fully around the fence as its length equals the circumference. if we...
There is a big field full of green grass. At its centre is a circular fence, of radius R. a cow is tied to the circumference of the fence using a rope whose length is exactly 2\PiR. Now, the cow starts eating the grass. we have to find the maximum area of the grass it can eat. the cow can not...
Homework Statement
The De Broglie Wavelength of any object in motion is given by
\lambda=\frac{h}{P} where h is Planck's constant and P is the body's momentum. for heavy masses this wavelength is too small to be observed, nevertheless it is still there... I have seen a derivation for this...
Homework Statement
A frictionless path is set up between two points in space at different heights, such that a body released from the higher point along this path takes minimum possible time to reach the lower point. Show that the path is a cycloid. Also show that a body released along this...
both move in this case - who gets more wet? even though the rate of getting wet is more in case of motor cyclist os more he spends lesser time in rain and the cyclist spends more time in rain though the rate of getting wet is less. hence the argument that both get wet to the same extent seems...
the rate of rainfall is same in the ground frame of reference... but a fast moving person sweeps the same volume... may be in lesser time, but the number of rain drops he hits in the interim period is the drops whose space he occupied during his journey - which is completely independent of time...
Homework Statement
Suppose it is raining at a constant rate (at any instant the number of raindrops in a given volume of space will be constant) . there is no wind and rain falls vertically. two persons of same size (height, stoutness etc) set out to travel a fixed distance say d meters in a...