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• Complete Physics Course - Class 11
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```				   what is perception of vectors and how it is benificial in finding the angles b/w two vectors  ???? explain with fig... n in dtail
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6 years ago

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# Other Related Questions on Mechanics

Given a vector A = 2i + 3j and a vector B = i + j.The component of the vector A along B is(a) 1/(2)½ (i + j) (b) 3/(2)½ (i + j)(c) 5/(2)½ (i + j)(d) 7/(2)½ (i + j)

The component of the vector A along B geometrically is: Bcos(theta) = (A.B/|B|).(Bcap) = 5/(2)½ (i + j) option is correct.

 2017 years ago
For aiims..should i prefer mechanical engineering book? By s chand(for physics)

S.Chand Physics book is fine for academics also even fine for preparation to some extent. prepare concepts clearly from it....

 Santosh Datla 3 months ago

@ sakshi No, for aiims mechanical engg book is not required at all , i never practiced any mechanical or even any books from s chand , but still i am in. For aiims specially u require the...

 Umakant biswal 3 months ago
As contact forces are eletomagnetic in nature.as normal reaction is of repulsive nature while that of Tention is attractive nature,so what is reason behind it at atomic level?

Reason: Because the rope always tends to stretch and pull the objects. Hence the Tension force produced is attractive in nature. At atomic level, he atoms or molecules tends to have...

 Vikas TU 25 days ago

Because the rope always tends to stretch and pull the objects. Hence the Tension force produced is attractive in nature. At atomic level, he atoms or molecules tends to have electrostatic...

A force of 50N is inclined to the vertical at an angle of 30 degree . Find the acceleration it produces in a body of mass 2kg which moves in the horizontal direction.

Do components in x direction. therfore, acceleration it produces in a body of mass 2kg is: in x direcn. Fsin30 = m*a 50*0.5 = 2*a a = 25/2 m/s^2.

 Vikas TU 2 months ago
is it possible to create magnetic field without electric field?

@ krishna there are 2 way of creating an electric field , – introduce an electrically charged particle , or introduce a time varying magnetic field . however , there are no magnetically...

 Umakant biswal one month ago
A luminous point is moving at a speed v’ towards a spherical mirror, along its axis. Then the speed with which the image of this point object is moving is given by? (Radius of curvature is...

You no longer have to wait desperately for someone to help resolve your doubt. You can chat with IITians live, 24/7 (even at 3AM!) and get your doubt resolved instantly. Try the HashLearn...

 Ankit 3 months ago
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