the sum of the breaking distance (when your foot is on the break pedal) and the reaction distance (distance travelled before your foot is on the break pedal). Reaction distance varies directly with speed, and breaking distance varies with the square of the speed. Find the particular equation if at 30 kph your reaction distance is 7 m and your

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A: KnownsUnknowns

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.