A 50 kg girl is swinging on a swing from rest. Then the power delivered when moving with a velocity of 2m/sec upwards in a direction making an angle 60º with the vertical is

A 50 kg girl is swinging on a swing from rest. Then the power delivere

1.	A 50 kg girl is swinging on a swing from rest. Then the power delivered when moving with a velocity of 2m/sec upwards in a direction making an angle 60º with the vertical is
Answer» 980W 490W `490sqrt3W` 245W Answer :B