The instantaneous angular position of a point on a rotating wheel is given by the equation,
θ(t) = 2t3 – 6t2 
The torque on the wheel becomes zero at:

1.  t= 0.5 s

2.  t= 0.25 s

3.  t= 2 s

4.  t= 1 s

Subtopic:  Rotational Motion: Kinematics |
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A wheel has an angular acceleration of 3.0 rad/s2 and an initial angular speed of 2.00 rad/s. In a time of 2 s, it has rotated through an angle (in radian) of:

1. 6

2. 10

3. 12

4. 4

Subtopic:  Rotational Motion: Kinematics |
To view explanation, please take trial in the course below.
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To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
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NEET MCQ Books for 11th Physics, Chemistry & Biology