An aircraft begins its takeoff roll starting from rest at the end of the runway. It accelerates at a constant 5.0 m/s². The runway is 1800 m long. Assume that the plane takes off right at the end of the runway (this of course is very unsafe but just go with it). How long (in seconds) did the takeoff roll last?

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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.