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A body of mass 4 kg is placed on a plane at a point P having coordinate (3, 4) m. Under the action of force ( ) N j ˆ 3 i ˆ 2 F + = , it moves to a new point Q having coordinates (6, 10)m in 4 sec. The average power and instantaneous power at the end of 4 sec are in the ratio of :

1. 13 : 6
2. 6 : 13
3. 1 : 2
4. 4 : 3

Correct answer: 6 : 13

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