$\"\"$

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The object moves along with the ellipse equation is $\"\"$ .

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The motion begins at $\"\"$ in clock wise direction.

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Since the direction is clock wise, $\"\"$ -positive and $\"\"$ -positive, $\"\"$ and $\"\"$ .

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The time required for one complete revolution is $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ and $\"\"$ .

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$\"\"$ and $\"\"$ , $\"\"$ .

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$\"\"$

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$\"\"$ and $\"\"$ , $\"\"$ .