Section: AP Calc AB

16) An object is fired straight up into the air. Its height in meters after t seconds being fired is given by s(t) = -4.9t² + 34.3t. Find the acceleration of the object.

1. a(t) = 9.8 m²/s
2. a(t) = -9.8 m²/s
3. a(t) = 4.9 m²/s
4. a(t) = -4/9 m²/s

a(t) = s”(t) = -9.8 m²/s.