A circular platform is mounted on a vertical frictionless axle. Its radius is \( r=2 \mathrm{~m}...

Channel:
PW Solutions
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=EvX7J_q96jY


Duration: 2:56
74 views
0

A circular platform is mounted on a vertical frictionless axle. Its radius is \( r=2 \mathrm{~m} \) and its moment of inertia is
P \( I=200 \mathrm{~kg} \mathrm{~m}^{2} \). It is initially at rest. A \( 70 \mathrm{~kg} \) man stands on

W the edge of the platform and begins to walk along the edge at speed \( v_{0}=1 \mathrm{~ms}^{-1} \) relative to the ground. The angular velocity of the platform is
(1) \( 1.2 \mathrm{rad} \mathrm{s}^{-1} \)
(2) \( 0.4 \mathrm{rad} \mathrm{s}^{-1} \)
(3) \( 2.0 \mathrm{rad} \mathrm{s}^{-1} \)
(4) \( 0.7 \mathrm{rad} \mathrm{s}^{-1} \)
πŸ“²PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-02-14Ultraviolet light of wavelength \( 200 \mathrm{~nm} \) is incident ...
2023-02-14In the above problem, when the man has walked once around the platform so that he is at his orig...
2023-02-1416 players \( \mathrm{P}_{1}, \mathrm{P}_{2}, \mathrm{P}_{3}, \ldots \ldots . \mathrm{P}_{16} \)...
2023-02-14The sum of two numbers is 3 , then max value of the product of the ...
2023-02-14In the above problem, the final angular velocity of the small cylinder is (1) \( \frac{\omega_{0...
2023-02-14The value of the determinant \( \mathrm{P} \) \( \left|\begin{array...
2023-02-14The work function for aluminium surface is \( 4.2 \mathrm{eV} \). T...
2023-02-14If the rate of increase of \( \frac{x^{2}}{2}-2 x+5 \) is twice the...
2023-02-14If \( h \) is Planck's constant, the momentum of a photon of wavele...
2023-02-14Electrons used in an electron microscope are accelerated by a volta...
2023-02-14A circular platform is mounted on a vertical frictionless axle. Its radius is \( r=2 \mathrm{~m}...
2023-02-14The absolute maximum of \( y=x^{3}-3 x+2 \) in \( [0,2] \) is (A) 4...
2023-02-14Electrons with de-Broglie wavelength \( \lambda \) fall on the targ...
2023-02-14In the form of dichromate, \( \mathrm{Cr}(\mathrm{VI}) \) is a stro...
2023-02-14- If alpha particle, proton and electron move with the same momentu...
2023-02-14Rank the following groups of compounds in order of decreasing solubility in \( \mathrm{H}_{2} \m...
2023-02-14There are two sources of light, each emitting with a power of \( 20...
2023-02-14The combinatorial coefficient \( { }^{\mathrm{n}-1} C_{\mathrm{p}} \) denotes (A) the number of ...
2023-02-1416 players \( \mathrm{P}_{1}, \mathrm{P}_{2}, \mathrm{P}_{3}, \ldots \ldots . \mathrm{P}_{16} \)...
2023-02-14The number of photons entering the pupil of our eye per second, whe...
2023-02-14Generally transition elements and their salts are coloured due to t...