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The angular speed of earth, so that the object on equator may appear weightless is(g = 10 m/s², radius of earth=6400 km)
Options
(a) 1.25 x 10⁻³ rad/s
(b) 1.56 x 10⁻³ rad/s
(c) 1.25 x 10⁻1 rad/s
(d) 1.56 rad/s
Correct Answer:
1.25 x 10⁻³ rad/s
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Subject: Physics
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- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
- An electric motor operating on a 60 volt D.C supply draws a current of 10 amp.
- A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions
- The velocity of a particle at an instant is 10 ms⁻¹.After 3 s its velocity will become
- Energy of all molecules of a monoatomic gas having a volume V and pressure P is 3PV/2.
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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Solution:
ω=√(g/R)=√(10/6400*10^3)=1.25*10^(-3) rad/s