Vishnuvardhan

its 85 metres Sol first find for 9 seconds 500 = k * 10 * 10 => k=5 for 9 seconds D= 5 * 9 * 9 = 405 so 95 seconds travelled for 8 seconds D = 5 * 8 * 8 = 320 1 second it travells 95 metre so 9 th second 320 + 95 = 415 so in 9th second it travells exactly...