4) In a particular crash test, an automobile of mass 1540 kg collides with a wall, as shown in the Figure. The initial and final velocities of the automobile are Vị = -15.0i m/s and vr= 2.60i m/s, respectively before and after the collision. If the collision lasts for 0.120 s, a) Find the impulse caused by the collision and b) The average force exerted on the automobile.

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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.