Let f(t) be the weight (in grams) of a solidsitting in a beaker of water after t minutes have elapsed.Suppose that the solid dissolves in such a way that the rate ofchange (in grams/minute) of the weight of the solid at any timet can be determined from the weight using theforumula:
f′(t)=−4f(t)(6+f(t))
If there is 1 grams of solid at time t=2 estimate theamount of solid 1 second later.
