Home
Class 12
PHYSICS
A metal sphere of mass 0.2 kg is attache...

A metal sphere of mass 0.2 kg is attached to an inextensible string of length 130 cm whose upper end is fixed to the rigid support. If the sphere is made to describe a horizontal circle of radius 50 cm, the timefor its one revolution is near about

A

1.2 s

B

2.2 s

C

1.5 s

D

3 s

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

A bullet of mass 10g moving horizontally with a velocity of 400 ms^(-1) strikes a wooden block of mass 2 kg which is suspended by a light inextensible string of length 5m . As a result, the center of gravity of the block is found to rise a vertical distance of 10cm . The speed of the bullet after it emerges out hirizontally from the block will be

A solid sphere of mass 2 kg and radius 5 cm is rotating at the rate of 300 rpm. The torque required to stop it in 2pi revolutions is

A 0.5 kg of mass is rotated in a horizontal circle of radius 20cm. Calculate the centripetal force acting on it , If angular speed of revolution is 0.8 rad/s.

A ball of mass 0.25 kg attached to the end of a string of length 1.96 m is moving in a horizontal circle. The string will break, if the tension is more than 25 N. What is the maximum speed with which the ball can be moved ?

A particle with charge Q coulomb, tied at the end of an inextensible string of length R metre, revolves in a vertical plane. At the centre of the circular trajectory, there is a fixed charge of magnitude Q coulomb . The mass of the moving charge M is such that Mg=Q^2/(4pivarepsilon_0R^2) . If at the highest position of the particle, the tension of the string just vanishes, the horizontal velocity at the lowest point has to be

A 0,5 kg mass is rotated in a horizontal circle of radius 20 cm. Calculate the centripetal force acting on it , if its angular speed of rotation is 0.6 rad/s .

A stone tied to the end of a string of length 50 cm is whirled in a horizontal circle with a constant speed . IF the stone makes 40 revolutions in 20 s, then the speed of the stone along the circle is

A ball of mass (m) 0.5 kg is attached to the. end of a string having length (L) 0.5 m. The ball is rotated on a horizontal circular path about vertical axis. The maximum tension that the string can bear is 324 N. The maximum possible value of angular velocity of ball (in radian/s) is

A mass 2 kg describes a circle of radius 1 m on a smooth horizontal table at a uniform speed .If is joined to the centre of the circle by a string, which can just withstand 32 N, then the greatest number of revolution per minute , perfomed by the mass would be

Choose the correct options A uniform rod of mass 2 m is held horizontal by two sturdy, practically inextensible vertical strings tied at its ends. A boy of mass 3 m hangs himself at one third length of the rod. Ratio of the tension in the string close to the boy to that in the other string is