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A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00 rad/sec. In a time of 2 sec it has rotated through an angle (in radian) of
Options
(a) 10
(b) 12
(c) 4
(d) 6
Correct Answer:
10
Explanation:
Since, θ = ?￢ﾂﾀt + 1/2 αt²
Where, α is angular acceleration, ?￢ﾂﾀ is the initial angular speed. t = 2s
θ = 2 x 2 + 1/2 x 3(2)² = 4 + 6 = 10 rad
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Topics: Motion of system of Particles and Rigid Body
(73)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An inductor 20 mH, a capacitor 50 μF and a resistor 40Ω are connected in series
- A proton beam enters a magnetic field of 10⁻⁴ Wb/m² normally. If the specific charge
- The r.m.s speed of the molecules of a gas in a vessel is 400 m/s
- A body of length 1 m having cross-sectional area 0.75 m² has heat flow through it
- The photoelectric threshold wevelength for potassium (work function being 2 eV) is
Topics: Motion of system of Particles and Rigid Body (73)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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