Advertisements
Advertisements
Question
State one factor on which the magnitude of a non-contact force depends. How does the magnitude of a non-contact force change along with distance?
Advertisements
Solution
The magnitude of a non-contact force depends on distance. If the magnitude of a non-contact force increasing then distance decreasing.
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
State the effect of force F in of the following diagram.

The steering wheel of a vehicle is of large diameter.
It is easier to open the door by pushing it at its free end.
The spanner (or wrench) has a long handle.
Write an expression for the change in momentum of a body of mass m moving with velocity v if v << c.
State the relationship between force, mass and acceleration. Draw graphs showing the relationship between Acceleration and mass for a constant force.
State two factor on which moment of force about a point depends.
A, B and C are the three forces each of magnitude 4 N acting in the plane of the paper as shown in Figure. The point O lies in the same plane.

- Which force has the least moment about O? Give a reason.
- Which force has the greatest moment about O? Give a reason.
- Name the forces producing
(a) Clockwise
(b) anticlockwise moments. - What is the resultant torque about the point O?
A uniform metre rule rests horizontally on a knife-edge at the 60 cm mark when a mass of 10 gram is suspended from one end. At which end must this mass be suspended? What is the mass of the rule?
