Write an equation for the car's average speed when it travels a complete lap in time t. Express your answer in terms of the variables r, t, and appropriate constants. Vavg = 277 Submit Previous Answers V Correct Part B The radius of the track is 380 m , and the time to complete a lap is 35 s . Find the average speed around the track. Express your answer to two significant figures and include the appropriate units. Vavg = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Review your calculations and make sure you round to 2 significant figures in the last step