Question
A straight rod of length L has one of its ends at the origin and the other end at x=L If the mass per unit length of rod is given by Ax where A is constant where is its center of mass.
The correct answer is:
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In 
then 
s denotes the semi-perimeter of the triangle ABC, ∆ its area and R the radius of the circle circumscribing the triangle ABC i.e., R is the circum-radius.
In then
s denotes the semi-perimeter of the triangle ABC, ∆ its area and R the radius of the circle circumscribing the triangle ABC i.e., R is the circum-radius.
A small disc of radius 2 cm is cut from a disc of radius 6 cm. If the distance between their centrer is 3.2 cm, what is the shift in the center of mass of the disc...
A small disc of radius 2 cm is cut from a disc of radius 6 cm. If the distance between their centrer is 3.2 cm, what is the shift in the center of mass of the disc...
Let be the moment of inertia of a uniform square plate about an axis AB that passes through its center and is parallel to two of its sides CD is a line in the plane of the plate that passes through the center of the plate and makes an angle of Q with AB. The moment of inertia of the plate about the axis CD is then equal to....
Let be the moment of inertia of a uniform square plate about an axis AB that passes through its center and is parallel to two of its sides CD is a line in the plane of the plate that passes through the center of the plate and makes an angle of Q with AB. The moment of inertia of the plate about the axis CD is then equal to....
If 
is positive, then 
lies between
If is positive, then lies between
If 
then the Δk is
If then the Δk is
If 
then 
=
If then =
If 
and 
, 
then 
If and , then
In a 
If 
then 
In a If then
Assertion (A): If 
then 
Reason (R): If 
then 
Assertion (A): If then
Reason (R): If then
Concentrations of the atmospheric 
have been rising becaue of
Concentrations of the atmospheric have been rising becaue of
Two disc of same thickness but of different radii are made of two different materials such that their masses are same. The densities of the materials are in the ratio 1:3. The moment of inertia of these disc about the respective axes passing through their center and perpendicular to their planes will be in the ratio
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of 
(alum) can be replaced by
of (alum) can be replaced by
If the sides of triangles are 8,15,17 then radius of the Circumcenter is
In this question, we have to find the radius of the circumcenter. The given sides of triangle is triad of the Pythagoras theorem then the triangle is right angled.
If the sides of triangles are 8,15,17 then radius of the Circumcenter is
In this question, we have to find the radius of the circumcenter. The given sides of triangle is triad of the Pythagoras theorem then the triangle is right angled.
A thin wire of length L and uniform linear mass density 
is bent in to a circular loop with center at O as shown in figure. The moment of inertia of the loop about the axis xx’ is ....
A thin wire of length L and uniform linear mass density is bent in to a circular loop with center at O as shown in figure. The moment of inertia of the loop about the axis xx’ is ....
If heart of a mammal was injected with 2% 
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If heart of a mammal was injected with 2% solution, then
