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प्रश्न
Why is it easier to open a door by applying the force at the free end of it?
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उत्तर १
It is easier to open a door by applying the force at the free end of it because of the larger the perpendicular distance, less is the force needed to turn the body.
उत्तर २
If we open or shut a door, we need to apply less force at the free end because according to the formula of the moment of force
M = Force × Perpendicular distance of force from axis of rotation
The magnitude of the force is inversely proportional to the perpendicular distance of force from the axis of rotation. Thus, as the distance between the point of force application and hinge will increase, the amount of force required to open the door will decrease.
संबंधित प्रश्न
Give one example in the given cases:-
A force moves a stationary body
Define Newton (the S.I unit of force)
A body of mass 1 kg is thrown vertically up with an initial speed of 5 m s-1. What is the magnitude and direction of force due to gravity acting on the body when it is at its highest point? Take G = 9.8 n kg-1
A truck of mass `5 xx 10^3` kg starting from rest travels a distance of 0.5 km in 10 s when a force is applied on its calculate:
1) the acceleration acquired by the truck and
2) the force applied
A force od 10 kgf is applied on a body of mass 100 g initially at rest for 0.1 s calculate:
a) the momentum acquired by the body
b) the distance travelled by the body in 0.1s. Take g = 10 N kg-1
State the condition when on applying a force, the body has the translational motion.
______ has to be applied to change the ______ of a ______ object.
(moving, direction, force)
Force acting on a given area is called pressure.
In which of the following sport the turning of the effect of force used
Derive the unit of force using the second law of motion. A force of 5 N produces an acceleration of 8 m s–2 on a mass m1 and an acceleration of 24 m s–2 on a mass m2. What acceleration would the same force provide if both the masses are tied together?
