1.

A 10 ft chain weighs 25 lb and hangs. from a ceiling. Find the work clone [in ft-lb} in lifting the lower end of the chain to the ceiling so that it's level Iwith the upper end. Find the average value fare of the function .Fen the given interval. 1 Ir'IZ 121: 2. [are] I A variable force of tax2 pounds moves an object along a straight line when it is 2: feet from the origin. Calculate the work done (in ft-IIJ} in moving the object from x = 1 ft to x = 11 ft. (Round your answer to two decimal places}