1.

A particle in a certain conservative force field has a potential energy given by V=(20xy)/(z). The force exerted on it is

Answer»

`((20y)/(z))HAT(i)+((20x)/(z))hat(J)+((20XY)/(z^(2)))hat(K)`
`-((20y)/(z))hat(i)-((20x)/(z))hat(j)+((20xy)/(z^(2)))hat(k)`
`-((20y)/(z))hat(i)-((20x)/(z))hat(j)-((20xy)/(z^(2)))hat(k)`
`((20y)/(z))hat(i)+((20x)/(z))hat(j)-((20xy)/(z^(2)))hat(k)`

Answer :B


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