Question

An advertisement shows a 1239 kg car slowly pulling at constant speed a large passenger airplane to demonstrate the power of its newly-designed 69.7-hp (horsepower) engine. During the pull, the car passed two landmarks spaced 25.0 meters apart in 15.3 seconds. The passenger plane being towed is a Boeing 707, with a total weight of 62.5 tons Calculate the force that opposes the motion. Assume that the efficiency of the car is such that 24.2% of the engine power is available to propel the car forward. Number How much work is performed by the car on the airplane during this time? Number How much work is performed by the airplane on the car during this time? Number

Answer 1

69.7 x 746 51,996.2 w Tt 0. 242X 5/996.2 12583 W mai t=15.3 & 12583 (b) tWoseck = 192525 J =192 525 AI Wa-Fd -7701X25 ニー192525 J ニー102:525AT