When three coplanar and non-parallel forces are in equili...
When three coplanar and non-parallel forces are in equilibrium,
I. they can be represented in magnitude and direction by the three sides of a triangle taken in order.
II. their lines of action meet at a point.
III. the magnitude of anyone equals the magnitude of the resultant of the other two.
IV. any one force is the equilibrant of the other two.
Which of the following statements above are correct?
I & II only
II & III only
II, III & IV only
I, II, III & IV
I, III & IV only
Correct answer is D
No explanation has been provided for this answer.
A stroboscope can be used to make the wave appear …………. ...
The half-life of a radioactive substance is 2 seconds. Calculate the decay constant. ...
A transformer connected to a 240Vr.m.s has 3000 turns in its primary coil and 500 turns in it...
Arrange the following radiations in order of increasing ionization of air. I. Alpha Il. Gamma IIl...
The molecular structure of a liquid is such that ...
The force exerted on a charged body in an electric field depends on I. the charge on the body ...