Determine the average velocity of the particle when t 6.4 s express your answer to three significant figures and include the appropriate units. a particle moves along a straight line such that its position is (t2-6t+5) m defined by s ha m s previous answers request answer submit x incorrect; try again; 5 attempts remaining part b determine the average speed of the particle when t 6.4 s express your answer to three significant figures and include the appropriate units. ? ha m (usp)ave =2.81 s previous answers request answer submit x incorrect; try again; 5 attempts remaining determine the average speed of the particle when t 6.4 s. a particle moves along a straight line such that its position is defined by s (t2 -6t+5) m. express your answer to three significant figures and include the appropriate units. ? μα m (usp)avg2.81 previous answers request answer submit x incorrect; try again; 5 attempts remaining part c determine the acceleration of the particle when t 6.4 s express your answer to three significant figures and include the appropriate units. ?