COMEDK · Physics · 8. Rotational Motion
A record player is spinning at an angular velocity of \(45 \mathrm{~rpm}\) just before it is turned off. It then decelerates at a constant rate of \(0.8 \mathrm{~rad} \mathrm{~s}^{-1}\). The angular displacement is
- A 1.66 rad
- B 56.25 rad
- C 55.44 rad
- D 13.88 rad
Answer & Solution
Correct Answer
(D) 13.88 rad
Step-by-step Solution
Detailed explanation
The initial angular velocity \(\omega_0\) is given as \(45 \text{ rpm}\). Converting this to \(\text{rad s}^{-1}\):…
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