0 votes 0 votes Mani Perumal asked Apr 13, 2015 Mani Perumal 5.1k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 3 votes 3 votes 4000 revolution per minute means 60/4000 seconds for 1 revolution.. average access time is time to complete 1/2 revolution i.e. . 7.5 milli second.. Digvijay Pandey answered Apr 13, 2015 • selected Apr 28, 2015 by Mani Perumal Digvijay Pandey comment Share Follow See all 0 reply Please log in or register to add a comment.