Is moment of inertia is the only cause for Cenrifugal force or Any other ?

Answer 1

When an object is accelerated, it tends to go in a "straight" line unless acted upon by another force (refer Newton).
When it is rotated in a circle, it is accelerated toward the center (axle) even if its velocity is uniform - and, as you know, for every action, there is an opposite and equal reaction (again, refer Newton). It is this opposite reaction that tends the object to fly off the rotational path and assume the traditional "straight" path of least resistance. Inertia will tend to keep the object in motion, but it is the other forces acting on it that really characterize centripetal force.

Answer 2

Angular momentum (Iw) is doubled. The angular impulse (torque x time) had to cut back returned the angular momentum to 0 is likewise doubled. Assuming torque is continuing, the time could be doubled. So yet yet another 6 seconds. evaluate this to the linear equivalent: a1 kg mass vacationing at 1m/s. Momentum = 1kgm/s, A stress of 1N appearing for 1s will supply up it (impulse = F x t = 1Ns = replace of momentum) A 2 kg mass vacationing at 1m/s. Momentum = 2kgm/s, A stress of 1N appearing for 2s will supply up ((impulse = F x t = 2Ns = replace of momentum)