Two point masses 3 kg each at the ends of a massless rod of length 4 m. I about axis through center perpendicular to rod:
A48
B36
C24
D12
Answer & Solution
Correct answer: C. 24
Each mass at distance 2 m from center. I = sum m × r² = 3 × 2² + 3 × 2² = 12 + 12 = 24 kg m².
Related questions
The branch describing the motion of a rotating rigid body about a fixed axis is rotationalSix washers on a light rod illustrate the moment of inertia of a system of:The more massive an object is, the more of this it has in linear motion:Unlike linear position measured in metres, angular position is measured in units that are:Acceleration caused by the change in direction of tangential velocity is called:Several torques acting about one axis are combined by finding their:The perpendicular distance from the axis to the line of the force is called the:The SI unit of torque is the newton multiplied by the: