The race car travels around the circular track with a speed of 16 m/s. When it reaches point A it increases its speed at a,=(0.75v0 25) m/s, where v is in m/s. Determine the magnitudes of the velocity and acceleration of the car when it reaches point B. Also, how much time is required for it to travel from A to B? 200 m Figure 4: Projectile.

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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.