The v-t graph for the motion of a car as it moves along a straight road is shown. Draw the s-t graph and determine the average speed and the distance traveled for the 32-s time interval. The car starts from rest at s = 0. v (ft/s) v = t+b ven- v = af t (s) 11 12 where a = 0.49 , b=29 t1 = 14, t2=32

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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.