The turning of couple - class-XII
Description: the turning of couple | |
Number of Questions: 16 | |
Created by: Sharvani Hegde | |
Tags: systems of particles and rotational motion forces - vectors and moments physics force motion of system of particles and rigid bodies rotational motion of a rigid body and moment of inertia |
Which of the following is/are the properties of moment of a couple?
Two like parallel forces $20\ N$ and $30\ N$ act at the ends $A$ and $B$ of a rod $1.5\ m$ long. The resultant of the forces will act at the point:
Two small kids weighing 10kg and 15kg are trying to balance a seesaw of total length 5m with the fulcrum at the centre. If one of the kids is sitting at an end, the other should sit at
A couple produces
A couple is acting on a two particle systems. The resultant motion will be
A couple can never be replaced by a single force.
A couple produces,_____
In case of torque of a couple, if the axis is changed by displacing it parallel to itself, torque will
A couple produces :
While opening a tap with two fingers, the forces applied by the fingers are:
$ML^2T^{-2}$ is the dimensional formula for
An automobile engine develops $100$ $kW$ when rotating at a speed of $1800\ rev/min$. The torque it delivers is