Explanation for Question 24 From the Math (Calc) Section on the 2018 March Sat
Question 24 says the equation above can be used to approximate the speed 2 S in meters per second of an object T seconds after being 3 dropped into freefall, which of the following is the best interpretation of the number 4 9.8 in this context? 5 Well, as you can see from this equation at the top 9.8 is being 6 multiplied by the number of seconds in order to find the speed. 7 So that means that every time that T increases by one S increases 8 by 9.8. So for example, 9 if T is equal to one S is equal to 9.8, 10 if T is equal to two S is equal to 19.6. 11 So as you can see, when you plug in higher and higher numbers for 12 T the speed increases by 9.8, 13 that tells us that 9.8 represents the increase in speed of an object for 14 each second after it is dropped and that's Ann's choice.