A small block with a mass of 0.0400 kg is moving in the 𝑥𝑦-plane. The net force on the block is described by the potential energy function 𝑈(𝑥) = (5.80 𝐽 𝑚2 ⁄ )𝑥 2 − (3.60 𝐽 𝑚3 ⁄ )𝑦 3 . What are the magnitude and direction of the acceleration of the block when it is at the point (𝑥 = 0.300𝑚, 𝑦 = 0.600𝑚)?
Find the energy at the given points:
The force can be fund as
The acceleration is
from positive x-direction to positive y.
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