MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Radius of Gyration

A paraboloid ...

Question

A paraboloid shaped solid object is formed by rotation on parabola y=2x^2 about y axis as shown . If height of body is h then position of center of mass from origin is

Open in App

Solution

Suggest Corrections

thumbs-up

4

Similar questions

A solid body starts rotating about a stationary axis with an angular acceleration $α = α_{0} c o s φ$ , $φ$ is

the angle of rotation from the initial position. Find the angular velocity of the body as a function of the angle $φ$ .

Q. A body of mass

M

R

is as shown in figure.
The body can be a ring, a disc, a hollow sphere or a solid sphere,

I_{x}, I_{y}, I_{z}

are the moments of inertia about

x, y

z

axis respectively. Origin coincides with centre of mass of the body

Co-latitude of any position on earth is the angle the line from center of earth to the position forms with the axis of rotation of earth.

A geostationary satellite is at a height h above the surface of earth. If earth radius is R, choose the correct statement(s).

Q. A solid cylinder of mass

M

R

is mounted on frictionless horizontal axle so that it can freely rotate about its axis. A string of negligible mass is wrapped round the cylinder and a body of mass

m

is hung from the string,and if angular velocity with which cylinder rotates is proportional to

h^{a}

where h is height with which mass descends downward then the value of

2 a

Q. Four particles, each of charge

+ q

, are arranged symmetrically on the

x -

axis about the origin as shown. A fifth particle of charge

- Q

is placed on the positive

y -

axis as shown. What is the direction of the net electrostatic force on the charge

- Q

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Moment of Inertia of Solid Bodies

PHYSICS

Watch in App

explore_more_icon

Explore more

Radius of Gyration

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon