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Physics - Circular Motion Question with Solution | TestHub

PhysicsCircular MotionDynamicsMedium2 minPYQ_2017
PhysicsMediumsingle choice

A conical pendulum of lengthlmakes an angleθ=45°with respect toZ-axis and moves in a circle in theXYplane. The radius of the circle is0.4 mand its center is vertically belowO. The speed of the pendulum, in its circular path, will be -Take g=10 m s-2

Question diagram: A conical pendulum of length l makes an angle θ = 45 ° with

Options:

Answer:
C
Solution:


Tsinθ=mv2r

Tcosθ=mg

tanθ=v2rg

θ=45o

v2=rg

v=rg=0.4×10

v=2 m s-1

Stream:JEESubject:PhysicsTopic:Circular MotionSubtopic:Dynamics
2mℹ️ Source: PYQ_2017

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