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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