Advertisements
Advertisements
Question
Define non-contact forces.
Advertisements
Solution
The forces which act on a body without the help of any connector, are called non-contact forces or forces of distance. Gravitational force, Mechanical force, etc., are non-contact forces.
RELATED QUESTIONS
A force is applied on (i) a non-rigid body and (ii) a rigid body. How does the effect of the force differ in the above two cases?
The S.I. unit of force is kgf. (kilogram-force)
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.
Find the moment of force of 20 N about an axis of rotation at distance 0.5 m from the force.
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.
The spanner (or wrench) has a long handle.
It is easier to turn the steering wheel of a large diameter than that of a small diameter. Given reason.
A nut is opened by a wrench of length 25 cm. If the least force required is 10 N, find the moment of force needed to turn the nut.
