A 25-kg box is attached to two-light ropes and is being pulled in a frictionless, horizontal floor. The two forces pulling box is given:  F1 is 15 N due to east, and F2 is 10 N due north.    a)   Draw the free-body diagram b) What are the forces acting on the box? Identify whether contact or non-contact force. c) Identify the action-reaction pairs d)   What is the acceleration of the box?

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.