5. [0/6.66 Points] DETAILS PREVIOUS ANSWERS OSCOLPHYS2016ACC 6.2.P.015. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip. (For each answer, enter a number.) (a) Calculate the magnitude (in m/s*) of the centripetal acceleration at the tip of a 3.00 m long helicopter blade that rotates at 350 rev/min. x m/s2 (b) Compare the linear speed of the tip with the speed of sound (taken to be 340 m/s). Vtip sound = X X