AIPMT PRELIMS2007Physics-Rotational Motion
AIPMT PRELIMS 2007 Physics Angular Kinematics MCQ Question
Type: MCQ-numerical-Medium-Class 11
A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.0 rad/sec. In a time of 2 sec it has rotated through an angle (in radian) of
A
10
B
12
C
4
D
6
Correct Answer
Option B
Detailed Explanation
The angle rotated θ is given by θ = ω₀t + 0.5αt². Substituting ω₀ = 2 rad/sec, α = 3 rad/sec², and t = 2 sec, θ = 22 + 0.53*4 = 12 radians.
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