A particle of mass m rotates with a uniform angular speed ω. It is viewed from a frame rotating about the

(c) horizontal and intersecting the axis Explanation:  Since the body is rotating uniformly, a particle not on the axis moves in a uniform circular motion. This circle will be horizontal with its center at...

The correct answer is (b) Explanation:  Moment of inertia of the ring I = Mr²  Angular Momentum = I⍵  When the masses are attached, the moment of Inertia I'= Mr²+2mr²  =(M+2m)r²  Let the new angular speed...

A disc of radius = 10 cm = 0.1 m Angular velocity = 20 rad/s Linear velocity on the rim = ωr = 20 × 0.1 = 2 m/s Linear velocity at the...

t = 1 sec, r = 1 cm = 0.01 m  = 4 rd/s2 Therefore  ω= αt = 4 rad/s Therefore radial acceleration, An =ω2r = 0.16 m/s2 = 16 cm/s2

I1 = 6 kg-m2, ω1 = 2 rad/s , I2 = 5 kg-m2 Since external torque = 0 Therefore I1ω​1 = I2ω​2 ω2 = (6 × 2) / 5 = 2.4 rad/s

The correct answer is (b) 1/8(ωBl2).

The correct answer is (a) zero.

(c) the frame may be inertial but the resultant force on the particle is zero (d) the frame may be noninertial but there is a nonzero resultant force. Explanation:  (a) is incorrect because...

(a) Both the frames are inertial. (b) Both the frames are noninertial. Explanation: S1 is moving with constant velocity w.r.t frame S2 . So, if S1 is inertial, then S2 will be inertial...

(d) zero. Explanation: Centrifugal force is a pseudo force needed in an non-inertial frame of reference when we still want to use the Newton's Laws. In this case the frame of reference is...