NLM

Question 1

Tension in the chain if it is lying on a triangle ∆

Answer 1

T = λ R g cot θ

R= radius of chain
λ= linear mass density

Or
T= Mg cotθ / 2π

Question 2

If force is being applied on two blocks that are connected through a spring & both sides are being pulled then the max extension is?

Answer 2

Xmax = 2( m1F2 + m2F1 ) / K (m1+m2)

Question 3

If a wedge is moving with accn. Of a° ( a not) and a block is kept on it so what should be the accn. Of wedge ( which is a°) so that block will remain at rest w.r.t wedge

Answer 3

A° = g tan θ

Question 4

If a particle is moving in a cone/ paraboloid/ hemisphere in an equilibrium position so speed at which it has to move and the radius about which it will be revolving?

Answer 4

R = H tan θ
Vp = √ [( R g cot θ)]

Where tan θ = rg / Vp^2

R = point where it is rotating