JEE Mains · Physics · STD 11 - 13. oscillations
A rectangular block of mass \(5\,kg\) attached to a horizontal spiral spring executes simple harmonic motion of amplitude \(1\,m\) and time period \(3.14\,s\). The maximum force exerted by spring on block is \(.......N\).
- A \(10\)
- B \(5\)
- C \(20\)
- D \(30\)
Answer & Solution
Correct Answer
(C) \(20\)
Step-by-step Solution
Detailed explanation
\(\therefore T =3.14=\pi\) \(T =\pi=\frac{2 \pi}{\omega} \Rightarrow \omega=2\) \(F _{\max }= ma _{\max }\) \(= m \left( A \omega^2\right)\) \(= mA (2)^2\) \(=5 \times 1 \times 4\) \(=20\,N\)
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