Answer:
An increase in the amount of physical capital per worker MOVES THE ECONOMY ALONG THE AGGREGATE PRODUCTION FUNCTION, while technological progress SHIFTS UP THE AGGREGATE PRODUCTION FUNCTION.
Step-by-step explanation:
As physical capital per worker increases, efficiency and productivity increases. Physical capital per worker represents the stock of equipment, tools and machinery per worker, e.g. a delivery man distributes 10 packages a day using a bicycle, but if he is given a delivery truck, he will be able to deliver 30 packages per day.
Technological progress result in a rightward shift of the aggregate supply curve. Technological progress increases productivity in a major way, e.g. computers and the internet have changed the way we work and live. New machineries are usually more efficient and are capable of producing more products at lower costs and with lower wastes and residual byproducts. Automated factories are able to work 24/7 at very low costs per unit of output.