Verticle Circular Motion

A bob is tied up with a string AB of length l. End A of the string is fixed. There is a obstacle C vertically below A so that length AC=(2l)/(3). Bob is released from a height 'h' from its lowermost possible position so that it is just able to comlete verticle circular motion about C. Find 'h'.

Assertion In vertical circular motion, speed of a body cannot remain constant. Reason In moving upwards, work done by gravity is negative.

A stone tied to a string is rotated a vertical circle. The minimum speed of the stone during a complete vertical circular motion.

Assertion In circular motion, dot product of v and omega is always zero. Reason omega is always perpendicular to the plane of the circular motion.

A particle in a circular motion covers a distance of 0.5 pi r where r is the radius of the circular path. What is the angular displacement ?

A particle of mass m is doing horizontal circular motion with the help of a string (conical pendulum) as shown in the figure. If speed of the particle is constant then,

The position vector of a particle in a circular motion about the origin sweeps out equal areal in equal time. Its

How does rotatory motion differ from circular motion?

What is meant by circular motion? Give one example.

Assertion A charged particle is rotating in a circular path in uniform magnetic field. Then, plane of circle is perpendicular to the magnetic field. Reason Circular motion is a two-dimensional motion.