Physics

Problem

0.50\,\text{kg}

cart is attached to a horizontal ideal spring with spring constant

k=200\,\text{N}\!/\!\text{m}

. The cart is pulled

0.10\,\text{m}

to the right of equilibrium and released from rest on a frictionless track. What is the magnitude of the cart’s acceleration immediately after it is released? a)

40\,\text{m}\!/\!\text{s}^2

20\,\text{m}\!/\!\text{s}^2

10\,\text{m}\!/\!\text{s}^2

400\,\text{m}\!/\!\text{s}^2

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