Repeat Problem 6.20 but this time the data apply to a car going up a 20° incline.

Problem 6.20

An advertisement claims that a certain 1200-kg car can accelerate from rest to a speed of 25 m/s in a time of 8.0 s. What average power must the motor develop to produce this acceleration? Give your answer in both watts and horsepower. Ignore friction losses.