Physics-
General
Easy

Question

The three similar torque () are acting at an angle of 120º with each other. The resultant torque will be-

  1. zero  
  2. square root of 2  
  3. 3  
  4. /3  

The correct answer is: zero

Related Questions to study

General
Physics-

A torque of 2 newton-m produces an angular acceleration of 2 rad/sec2 a body. If its radius of gyration is 2m, its mass will be -

A torque of 2 newton-m produces an angular acceleration of 2 rad/sec2 a body. If its radius of gyration is 2m, its mass will be -

Physics-General
General
Physics-

The angular velocity of a body is stack omega with rightwards arrow on top equals 2 stack i with hat on top plus 3 stack j with hat on top plus 4 stack k with hat on top and a torque stack tau with rightwards arrow on top equals stack i with hat on top plus 2 stack j with hat on top plus 3 stack k with hat on top acts on it. The rotational power will be-

The angular velocity of a body is stack omega with rightwards arrow on top equals 2 stack i with hat on top plus 3 stack j with hat on top plus 4 stack k with hat on top and a torque stack tau with rightwards arrow on top equals stack i with hat on top plus 2 stack j with hat on top plus 3 stack k with hat on top acts on it. The rotational power will be-

Physics-General
General
Physics-

A force of left parenthesis 2 stack i with hat on top minus 4 stack j with hat on top plus 2 stack k with hat on top right parenthesis acts at a point left parenthesis 3 stack i with hat on top plus 2 stack j with hat on top minus 4 stack k with hat on top right parenthesis metre from the origin. The magnitude of torque is -

A force of left parenthesis 2 stack i with hat on top minus 4 stack j with hat on top plus 2 stack k with hat on top right parenthesis acts at a point left parenthesis 3 stack i with hat on top plus 2 stack j with hat on top minus 4 stack k with hat on top right parenthesis metre from the origin. The magnitude of torque is -

Physics-General
parallel
General
Physics-

A rigid body is rotating about a vertical axis at n rotations per minute, If the axis slowly becomes horizontal in t seconds and the body keeps on rotating at n rotations per minute then the torque acting on the body will be, if the moment of inertia of the body about axis of rotation is I -

A rigid body is rotating about a vertical axis at n rotations per minute, If the axis slowly becomes horizontal in t seconds and the body keeps on rotating at n rotations per minute then the torque acting on the body will be, if the moment of inertia of the body about axis of rotation is I -

Physics-General
General
Physics-

A flywheel has moment of inertia 4 kg-m2 and has kinetic energy of 200 J. Calculate the number of revolutions is makes before coming to rest if a constant opposing couple of 5N-m is applied to the flywheel -

A flywheel has moment of inertia 4 kg-m2 and has kinetic energy of 200 J. Calculate the number of revolutions is makes before coming to rest if a constant opposing couple of 5N-m is applied to the flywheel -

Physics-General
General
Physics-

A circular disc A of radius r is made from an iron plate of thickness t and another circular disc B of radius 4r is made from an iron plate of thickness t/4. The relation between the moments of inertia IA and IB is-

A circular disc A of radius r is made from an iron plate of thickness t and another circular disc B of radius 4r is made from an iron plate of thickness t/4. The relation between the moments of inertia IA and IB is-

Physics-General
parallel
General
Physics-

Three thin uniform rods each of mass M and length L and placed along the three axis of a Cartesian coordinate system with one end of each rod at the origin. The M.I. of the system about z-axis is-

Three thin uniform rods each of mass M and length L and placed along the three axis of a Cartesian coordinate system with one end of each rod at the origin. The M.I. of the system about z-axis is-

Physics-General
General
Physics-

The moment of inertia depends upon-

The moment of inertia depends upon-

Physics-General
General
Physics-

Three rings, each of mass P and radius Q are arranged as shown in the figure. The moment of inertia of the arrangement about YY' axis will be-

Three rings, each of mass P and radius Q are arranged as shown in the figure. The moment of inertia of the arrangement about YY' axis will be-
Physics-General

parallel
General
Physics-

Two discs have same mass and thickness. Their materials are of densities 1 and 2. The ratio of their moment of inertia about central axis will be -

Two discs have same mass and thickness. Their materials are of densities 1 and 2. The ratio of their moment of inertia about central axis will be -

Physics-General
General
Physics-

In an arrangement four particles, each of mass 2 gram are situated at the coordinate points (3, 2, 0), (1, –1, 0), (0, 0, 0) and (–1, 1, 0). The moment of inertia of this arrangement about the Z-axis will be-

In an arrangement four particles, each of mass 2 gram are situated at the coordinate points (3, 2, 0), (1, –1, 0), (0, 0, 0) and (–1, 1, 0). The moment of inertia of this arrangement about the Z-axis will be-

Physics-General
General
Physics-

A stone of mass 4 kg is whirled in a horizontal circle of radius 1m and makes 2 rev/sec. The moment of inertia of the stone about the axis of rotation is-

A stone of mass 4 kg is whirled in a horizontal circle of radius 1m and makes 2 rev/sec. The moment of inertia of the stone about the axis of rotation is-

Physics-General
parallel
General
Physics-

A particle, moving along a circular path has equal magnitudes of linear and angular acceleration. The diameter of the path is : (in meters)

A particle, moving along a circular path has equal magnitudes of linear and angular acceleration. The diameter of the path is : (in meters)

Physics-General
General
Physics-

.A pair of parallel conducting rails lie at right angles to a uniform magnetic field of 2.0 blank T as shown in the fig. Two resistors 10 blank capital omega and 5 blank capital omega are to slide without friction along the rail. The distance between the conducting rails is 0.1 blank m. Then

.A pair of parallel conducting rails lie at right angles to a uniform magnetic field of 2.0 blank T as shown in the fig. Two resistors 10 blank capital omega and 5 blank capital omega are to slide without friction along the rail. The distance between the conducting rails is 0.1 blank m. Then
Physics-General

General
Physics-

In a magnetic field of 0.05 T, area of a coil changes from 101 c m to the power of 2 end exponent to 100 c m to the power of 2 end exponent without changing the resistance which is 2 capital omega. The amount of charge that flow during this period is

In a magnetic field of 0.05 T, area of a coil changes from 101 c m to the power of 2 end exponent to 100 c m to the power of 2 end exponent without changing the resistance which is 2 capital omega. The amount of charge that flow during this period is

Physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.