The particle P starts from rest at point A at time t = 0 and changes its speed thereafter at a constant rate of 1.4g as it follows the horizontal path shown. Determine the magnitude and direction of its total acceleration (a) just before point B, (b) just after point B, and (c) as it passes point C. State your directions relative to the x-axis shown (CCW positive) and choose the angle with the smallest magnitude. B -2.79 m→ 3.53 m --- -r Answers: (a) Just before B, a = i m/s?, i (b) Just after B, a = i m/s?, e = i (c) Passing C, i m/s?, e = i a =

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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.