Avg value

cm 2 . 1. An ant is crawling along a meterstick. Its acceleration after t seconds is a8) = t i132 SEC The ant's initial position is at the 50 cm mark, and it is initially moving with a velocity of 2 cmtscc. a) Find a formula for v{t), the ants velocity as a function of time. b} What was the ant's average velocity over the rst 2 seconds of its journey? c) What was the ant's average velocity over the next 2 seconds, from 1:2 to 1:4? 2. The number of hours, H, of daylight in Rockville can be reasonably approximated by the formula: 21150: 80) H t = 12 2.5! ' ( ) + sm( 365 ), where r is the number of days elapsed since the start of the year a. According to this formula, what is the average number of hours of daylight over a whole year? Does this answer seem reasonable to you? Whyfwhy not? b. What is the average number of hours of daylight during the month of October? (him.- what is the mine oft a: the beginning ofOcrober? A: the and ofrhe month?)