Question

o
Select and write the correct answern
i). A Small bob of mass 'm' is tied to a
string and revolved in a verticle circle
highest point is erg , the design is,
tesion in
the
string at the
a) 5 mg b) 6 mg a) Img dom​

Answer 1

Answer:

Let T be the tension in the string of conical pendulum.

From figure OB=r=Lsinθ

Horizontal direction : Tsinθ=mrw

2

∴ Tsinθ=m(Lsinθ)w

2

⟹T=mLw

2

Vertical direction : Tcosθ=mg

∴ (mLw

2

)cosθ=mg ⟹θ=cos

−1

(

Lw

2

g

)

solution