Advertisements
Advertisements
Question
State one way to obtain greater moment of a given force about a given axis of rotation.
Solution
In order to generate the maximum torque to turn the body, the force is applied at a position on the body where the line of action's perpendicular distance from the axis of rotation is maximum.
RELATED QUESTIONS
A brass ball is hanging from a stiff cotton thread. Draw a neat labeled diagram showing the forces acting on the brass ball and cotton thread
The S.I. unit of force is kgf. (kilogram-force)
A force always produces both the linear and turning motions.
Moment of force = force × perpendicular distance of force – from the pivoted point.
SI. unit of moment of force is
State the effect of force F in of the following diagram.
The hand flour grinder is provided with a handle near the rim.
It is easier to open the door by pushing it at its free end.
State the relationship between force, mass and acceleration. Draw graphs showing the relationship between Acceleration and force for a constant mass.
A body X of mass 5 kg is moving with velocity 20 m s-2 while another body Y of mass 20 kg is moving with velocity 5 m S-1. Compare the momentum of the two bodies.
A steering wheel of diameter 0.5 m is rotated anticlockwise by applying two forces each of magnitude 6 N. Draw a diagram to show the application of forces and calculate the moment of forces applied.
A uniform metre rule of weight 10gf is pivoted at its 0 mark.
What moment of force depresses the rule?
Classify the following amongst contact and non-contact forces.
Frictional force
What is the work done when no net force is applied on the body?
Write the expression for the moment of force about a given axis.
Give any two effects of a force on a non-rigid body.
State two factors on which moment of the force about a point depends.
Calculate the length of arm of couple, if a force of 13 N produces a moment of couple of 14.3 Nm.