A stone tied to a string is rotated in a circle. If string is cut, stone flies away from circle beca

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3-2.Motion in Plane

easy

A stone tied to a string is rotated in a circle. If the string is cut, the stone flies away from the circle because

AA centrifugal force acts on the stone

BOf its inertia

CA centripetal force acts on the stone

DReaction of the centripetal force

Solution

A stone tied to a string is rotated in a circle. If the string is cut, the stone flies away from the circle because there is a continuous tendency of the mass to move in the tangent of the position.

Standard 11

Physics

A particle of mass $200 \,g$ is moving in a circle of radius $2 \,m$. The particle is just 'looping the loop'. The speed of the particle and the tension in the string at highest point of the circular path are $\left(g=10 \,ms ^{-2}\right)$

medium

A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of $0.5 \,m/s$. What is the height of the plane of circle from vertex of the funnel …….. $cm$

hard

The force required to keep a body in uniform circular motion is

easy

A mass of $100\, gm$ is tied to one end of a string $2 \,m$ long. The body is revolving in a horizontal circle making a maximum of $200$ revolutions per min. The other end of the string is fixed at the centre of the circle of revolution. The maximum tension that the string can bear is ………. $N$. (approximately)

medium

A tube of length $L$ is filled completely with an incompressible liquid of mass $M$ and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity $\omega $. The force exerted by the liquid at the other end is