JEE Main 2014 (Offline) | Rotational Motion Question 185 | Physics

A mass $$'m'$$ is supported by a massless string wound around a uniform hollow cylinder of mass $$m$$ and radius $$R.$$ If the string does not slip on the cylinder, with what acceleration will the mass fall or release? JEE Main 2014 (Offline) Physics - Rotational Motion Question 188 English

JEE Main 2014 (Offline) Physics - Rotational Motion Question 188 English

$${{2g} \over 3}$$

$${{g} \over 2}$$

$${{5g} \over 6}$$

$$g$$

JEE Main 2013 (Offline)

MCQ (Single Correct Answer)

-1

A hoop of radius $$r$$ and mass $$m$$ rotating with an angular velocity $${\omega _0}$$ is placed on a rough horizontal surface. The initial velocity of the center of the hoop is zero. What will be the velocity of the center of the hoop when it cases to slip?

$${{r{\omega _0}} \over 4}$$

$${{r{\omega _0}} \over 3}$$

$${{r{\omega _0}} \over 2}$$

$${r{\omega _0}}$$

AIEEE 2011

MCQ (Single Correct Answer)

-1

A thin horizontal circular disc is rotating about a vertical axis passing through its center. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach its other end. During the journey of the insect, the angular speed of the disc.

continuously decreases

continuously increases

first increases and then decreases

remains unchanged

AIEEE 2011

MCQ (Single Correct Answer)

-1

A mass $$m$$ hangs with the help of a string wrapped around a pulley on a frictionless bearing. The pulley has mass $$m$$ and radius $$R.$$ Assuming pulley to be a perfect uniform circular disc, the acceleration of the mass $$m,$$ if the string does not slip on the pulley, is:

$$g$$

$${2 \over 3}g$$

$${g \over 3}$$

$${3 \over 2}g$$

PREVIOUS NEXT

Questions Asked from Rotational Motion (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions