Question

A 300 kg dragster accelerates from the rest to the final speed of 120 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is the average output in watts AND horsepower if this takes 7.30 seconds?

Answer 1

I don't know about horsepower but I know power.
Power output=(force*distance)/time
=(1200N*400m)/7.3s
=65 753.42466W (watts)