Advertisements
Advertisements
प्रश्न
It is easier to open the door by pushing it at its free end.
Advertisements
उत्तर
Moment of force is a product of force and perpendicular distance.
Torque is defined as Force x distance. Larger the distance from the fixed axis or hinge, larger the torque and hence it is easier to open the door
APPEARS IN
संबंधित प्रश्न
A force always produces both the linear and turning motions.
State two effects of a force when applied on a body.
Write the expression for the moment of force about a given axis of rotation.
A spanner of length 10 cm is used to open a nut by applying a minimum force of 5.0 N. Calculate the moment of force required.
State the condition when the change in the momentum of a body depends only on the change in its velocity.
The stone of hand flour grinder is provided with a handle near its rim. Give reason.
Give two examples of a couple's actions in our daily life.
Define couple.
Fig. shows a uniform meter scale weighing 100 N pivoted at its centre. Two weights of 500 N and 300 N are hung from the ruler as shown in fig.

(i) Calculate total clockwise and anticlockwise moments.
(ii) Calculate difference in clockwise moment and anticlockwise moment.
(iii) Calculate the distance from O where a 100 N weight should be suspended to balance the meter scale.
Clockwise moment produced by a force about a fulcrum is considered to be ______.
