Use the position equation s = −16t2 + v0t + s0 where s represents the height of an object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds). A projectile is fired straight upward from ground level (s0 = 0) with an initial velocity of 192 feet per second. (a) At what instant will it be back at ground level? sec ________ (b) When will the height be less than 192 feet? (Only consider the time from launch to landing. Enter your answer using interval notation.) ________
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Use the position equation
where s represents the height of an object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds).
A projectile is fired straight upward from ground level (s0 = 0) with an initial velocity of 192 feet per second.
sec ________
(b) When will the height be less than 192 feet? (Only consider the time from launch to landing. Enter your answer using interval notation.) ________
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