A particle travels clockwise on a circular path ofdiameter R, monitored by a sensor on the circle at point P; the other endpoint ofthe diameter on which the sensor lies is (1. Let IEI he the angle between the diameter PG and the line from the sensor to the particle. Let c be the length of the chord from the particle's position to (1. Complete parts a and h below. Sensor '1 a. Calculate di'dc. dB E=D