Advertisements
Advertisements
Question
The speed of the centre of a wheel rolling on a horizontal surface is vo. A point on the rim is level with the centre will be moving at a speed of, ______
Options
zero
v0
v02v0
Solution
The speed of the centre of a wheel rolling on a horizontal surface is vo. A point on the rim is level with the centre will be moving at a speed of,
APPEARS IN
RELATED QUESTIONS
In the HCl molecule, the separation between the nuclei of the two atoms is about 1.27 Å (1 Å = 10–10 m). Find the approximate location of the CM of the molecule, given that a chlorine atom is about 35.5 times as massive as a hydrogen atom and nearly all the mass of an atom is concentrated in its nucleus.
You are waiting for a train on a railway platform. Your three-year-old niece is standing on your iron trunk containing the luggage. Why does the trunk not recoil as she jumps off on the platform?
A collision experiment is done on a horizontal table kept in an elevator. Do you expect a change in the result if the elevator is accelerated up or down because of the noninertial character of the frame?
In an elastic collision
Solve the following problem.
A uniform solid sphere of radius R has a hole of radius R/2 drilled inside it. One end of the hole is at the center of the sphere while the other is at the boundary. Locate center of mass of the remaining sphere.
A round object of mass M and radius R rolls down without slipping along an inclined plane. The frictional force, ______
Find out the centre of mass for the given geometrical structures.
a) Equilateral triangle
b) Cylinder
c) Square
Three equal masses each of 50 g, are placed at the corners of a right angled isosceles triangle whose two equal sides are 5 cm each. The position of the centre of mass of the system is ____________.
Find the centre of mass of a uniform (a) half-disc, (b) quarter-disc.
A uniform square plate S (side c) and a uniform rectangular plate R (sides b, a) have identical areas and masses (Figure).
Show that
- IxR/IxS < 1
- IyR/IyS > 1
- IzR/IzS > 1