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Force
Define one Newton.
ii) Write the relation between S.I. unit and C.G.S. unit of force.
i) One Newton is the amount of force required to produce an acceleration of 1 m/s2 in a body of mass 1 kg.
ii) 1 N =1 kg x 1 m/s2
= 103 x 102 gm cm/s2
1 N = 105 dynesSponsor Area
With reference to their direction of action, how does a centripetal force differ from a centrifugal force.
A force is applied in i) a non- rigid body and ii) a rigid body. How does the effect of the force differ in the above two cases?
A metallic ball is hanging by a string from a fixed support. Draw a neat labelled diagram showing the forces acting on the ball and the string.
What is the weight of the body placed at the center of the earth?
Is it possible to have an accelerated motion with a constant speed? Explain.
i) When does a force do work?
ii) What is the work done by the moon when it revolves around the Earth?i) Define 1 kgf
ii) How is it related to the S.I. unit of force?i) What are non-contact force?
ii) How does the distance of separation between two bodies affect the magnitude of the non-contact force between them?i) What is meant by the term ‘moment of force’?
ii) If the moment of force is assigned a negative sign then will the turning tendency of the force be clockwise or anti-clockwise?
Sponsor Area