A model of a helicopter rotor has four blades, each 3.60 m in length from the central shaft to the tip of the blade. The model is rotated in a wind tunnel such that it makes one complete circle in a time of 0.180 s. Part A What is the speed of the blade tip? Express your answer in meters per second. V= Submit |VD| Part B Previous Answers Request Answer ? X Incorrect; Try Again; 3 attempts remaining m/s What is the radial acceleration of the blade tip, expressed as a multiple of the acceleration g due to gravity? Express your answer as a multiple of the acceleration due to gravity g.