At the bottom of a loop in the vertical (r-) plane at an altitude of 400 m,

At the bottom of a loop in the vertical (r-θ) plane at an altitude of 400 m, the airplane P has a horizontal velocity of 600 km / h and no horizontal acceleration. The radius of curvature of the loop is 1200 m. For the radar tracking at O, determine the recorded values of r¨ and  θ¨ for this instant.

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P 600 km/h | 400 m 1000 m Problem 2/153