Solution Found!
Solved: An airplane travels 2100 km at a speed of 720 km/h
Chapter 2, Problem 67GP(choose chapter or problem)
Suppose a car manufacturer tested its cars for front-end collisions by hauling them up on a crane and dropping them from a certain height.
(a) Show that the speed just before a car hits the ground, after falling from rest a vertical distance H, is given by \(\sqrt{2 g H}\). What height corresponds to a collision at
(b) 35 km/h ?
(c) 95 km/h ?
Questions & Answers
QUESTION:
Suppose a car manufacturer tested its cars for front-end collisions by hauling them up on a crane and dropping them from a certain height.
(a) Show that the speed just before a car hits the ground, after falling from rest a vertical distance H, is given by \(\sqrt{2 g H}\). What height corresponds to a collision at
(b) 35 km/h ?
(c) 95 km/h ?
ANSWER:Solution 67GPStep 1 of 4Here, we have to calculate the average speed for the trip and the total time for the trip.Provided, the distance travelled by the airplane before the tailwind boost,The speed of the airplane before the tailwind boost,Therefore, the time needed to cover a distance of 2100km with 720km/h speed is,The time required to cover a distance of 2100km with 720km/h speed is,