A simple pendulum of mass $200\, gm$ and length $100\, cm$ is moved aside till the string makes an angle of $60^o$ with the vertical. The kinetic and potential energies of the bob, when the string is inclined at $30^o$ to the vertical, are
A simple pendulum of mass $200\, gm$ and length $100\, cm$ is moved aside till the string makes an angle of $60^o$ with the vertical. The kinetic and potential energies of the bob, when the string is inclined at $30^o$ to the vertical, are
- A
$7.174 \times {10^6}\,erg$, $2.626 \times {10^6}\,erg$
- B
$8.2 \times {10^6}\,erg$, $2.2 \times {10^6}\,erg$
- C
$2.6 \times {10^6}\,erg$, $5.6 \times {10^6}\,erg$
- D
$3.6 \times {10^6}\,erg$, $6.2 \times {10^6}\,erg$
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