Home
Class 12
PHYSICS
A mass of 10kg is whirled in a horizonta...

A mass of 10kg is whirled in a horizontal circle by means of a string at an initial speed of 5 r.p.m. Keeping the radius constant , the tension in the string is quadrupled. The new speed is nearly

A

14 r.p.m

B

10 r.p.m

C

2.25 r.p.m

D

7 r.p.m

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

A mass of 2 kg is whirled in a horizontal circle by means of a string at an initial speed of 5 revolutions per minute. Keeping the radius constant the tension in the string is doubled. The new speed is nearly

A ball of mass 0.1 kg. is whirled in a horizontal circle of radius 1 m. by means of a string at an initial speed of 10 rpm. Keeping the radius constant, the tension in the string is reduced to one quarter of itsinitial value. The new speed is

An object of mass 2 kg is whirled round in a vertical circle of radius lm with a constantspeed of 4 m//s . Then the maximum tension in the string is

A stone of mass1/2kg iswhirled round the end of a piece of string in a horizontal circle of radius half a meter with a uniform speed of 1 m//s . The tension in the string is

One kg mass tied at the end of the string 0.5 m long is whirled in a horizontal circle, the other end of the string being fixed. The breaking tension in the string is 50 N. Find the greatest speed that can be given to the mass.

A body of mass 0.5 kg is whirled in a vertical circle at an angular frequency of 10 rad/s. If the radius of the circle is 0.5 m. What is the tension in the string when the body is at the top of the circle ?

A particle of mass 1 kg is revolved in a horizontal circle of radius 1 m with the help of a string. IF the maximum tension the string can with stand is 16pi^2 N, then the maximum frequency with which the particle can revolve is

A 2 kg stone at the end of a string 1 m long is whirled in a vertical circle at a constant speed. The speed of the stone is 4 m//sec . The tension in the string will be 52 N , when the stone is

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 particle of mass 2 kg is revolved in a horizontal circle of radius l m with the help of a string. If the maximum tension the string can withstand is 32pi^2 N , then the maximum frequency with which the particle can revolve is