For the fireworks shell of Prob. 2 /145, determine the values of r and when the

For the fireworks shell of Prob. 2 /145, determine the values of r¨ and  θ¨ when the shell reaches an altitude y = 175 ft. Refer to the printed answers for Prob. 2/145 as needed.

Data from Prob. 2 /145

A fi reworks shell P is launched upward from point A and explodes at its apex at an altitude of 275 ft. Relative to an observer at O, determine the values of r˙ and θ˙ when the shell reaches an altitude y = 175 ft. Neglect aerodynamic drag.

Transcribed Image Text:

275 350 A Problem 2/145