Kevin has animated a motion sequence at a speed of 24 fps. However, the motion looks rather unrealistic. What might be the problem?

Kevin needs to account for to make the motion look natural.

Johnson enterprises uses a computer to handle its sales invoices. lately, business has been so good that it takes an extra 3 hours per night, plus every third saturday, to keep up with the volume of sales invoices. management is considering updating its computer with a faster model that would eliminate all of the overtime processing.