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Aditya Baniya • asked a question

A solid tied at the end of a string is revolved in vertical. At what point the tension in the string will be the greatest?

1) At the top

2) At the bottom

3) Half a way towards top

4) Half a way towards...

At the bottom-is the correct one.

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2 Answers

Bishesh Gautam • asked a question

Prove that the angle between tangents from (-2,3) to y² = 8x are at right angles.

Here, the given equation of parabola is y²= 8x.

The equation of tangent to the parabola y²=8x is,

y= mx + 2/m

This tangent passes through the point (-2, 3)

So, 3 = -2m + 2/m

or, 3m + 2m² = 2

or, 2m²+3m - 2= 0

or, 2m² + (4 - 1)m -2 = 0

or, 2m² + 4m - m - 2 = 0

or, 2m(m + 2) - 1(m+2) = 0

or, (m + 2) (2m - 1) = 0

Either, Or,

m = -2 m = 1/2

Required angle is,

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2 Answers

Diwas Pandit • asked a question

What does the negative of a vector mean?

A negative of a vector represents the direction opposite to the reference direction. It means that the magnitude of two vectors are same but they are opposite in direction.

For example, if A and B are two vectors that have equal magnitude but opposite in direction, then vector A is negative of vector B.

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2 Answers

Rabin Kalikote • over 2 years ago

Since, I don't have any past experience with theatre, I want to recall one of my favorite pastime. I will take you to my childhood when I was in my village in Nepal.

In our corn field, my grandfather used to plough the land with oxes. I used to be fascinated by watching him and had great desire to plough the land. However, the oxes were too big for me to control. I wouldn't be able to even raise and move the plough that my granny...

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Ashutosh Thapa • almost 3 years ago

Guys I've exams from tomorrow

"PHYSICS "

Wish me luck!!!!

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Nikas Ghimire • over 3 years ago

NASA has recently released the sharpest and deepest image of the universe. Making us realize again, How tiny we are.

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1 Comments

gaurab giri

routine of nikas banda

Reply over 3y

Nikas Ghimire • over 3 years ago

There are different ways to visualize infinity to ponder upon. This is some random thing about infinity in my head which I'll be mentioning.

Imagine any number, Keep on adding a certain value to it, Since we are talking big here, there is no limit to how much you add.

Keep on adding, Imagine that the progress of increment is like a progress bar. So, Is the progress bar really progressing? Since it doesnt really have an end and no...

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1 Comments

Rabin Kalikote

Where could be the end? Any thoughts?

Reply over 3y

Nikas Ghimire

The end is when node_modules finishes installing.

over 3y