Advertisements
Advertisements
प्रश्न
Write the expression for the moment of force about a given axis.
Advertisements
उत्तर
Moment of force about a given axis = Force × perpendicular distance of force from the axis of rotation.
APPEARS IN
संबंधित प्रश्न
Where can a body execute free vibrations?
It is easier to open the door by pushing it at its free end.
A tall building has wide foundations.
What are non-contact forces? Give two example
State one factor on which the magnitude of a non-contact force depends. How does it depend on the factor stated by you?.
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?
Fig. 5 shows a uniform meter scale weighing 200 gf. Provided at its centre. Two weights 300 gf and 500 gf are suspended from the ruler as shown in the diagram. Calculate the resultant torque of the ruler and hence calculate the distance from mid-point where a 100 gf should be suspended to balance the meter scale.
State the units of moment of force.
A metal rod AB of length 80 cm is balanced at 45 cm from the end A with 100 gf weights suspended from the two ends.
- If this rod is cut at the center, C, then compare the weight of AC to the weight of BC. (Use >, < or =)
- Give a reason for your answer in (a).
