In: Math
the amount of caffeine in a persons body follows an exponential function, as do many drugs. the half life of caffeine is typically about 5.5 hours. if you drink a can of Red Bull, you put 80 mg of caffeine into your body. how long will it be until the amount of caffeine drops to 50 mg?
Note :
1. The general expression for exponential decay/depletion of a quantity is of the form
N = A. e^(-kt), where 'A' and 'k' are constants; 'A' being the initial quantity.
2. Half-life is the time required for the initial quantity to reduce to its half value.