see the pic attached

A kite glides horizontally at an altitude of 20 m while we unspool the string. Consequently, the angle made between the string and the horizon diminishes. We would like to determine the rate at which this angle decreases once 50 m of string has been unspooled, given that, at that instant, the kite's horizontal velocity is 3 m/s. To solve this problem, let @ be the angle in radians made between the string and the horizontal, a the kite's horizontal position in meters since being attached to the ground, and t the time in seconds. We further suppose that the string is straight and taut. (a) Sketch a diagram of this question and use it to express ( as a function of a . 0 = 5rad (b) What is the value of r at the moment in question? Give the exact value. I de (c) What is the value of - at the same moment? Give the exact value, paying attention to the sign. dt BE radis Submit Assignment Quit & Save Back Question Menu - Next, code py