A small block with mass 0.0400 kg is moving in the xy-plane. The net force on the block is described by the potential-energy function U(x,y)=(5.50J/m^2)x^2−(3.90J/m^3)y^3
What is the direction of the acceleration of the block when it is at the point x = 0.34m, y = 0.58m ?
a=136
