Object Height. Suppose an object is thrown straight up from the ground. The height after t seconds is given by the formu
Posted: Sat Jul 09, 2022 2:20 pm
Object Height. Suppose an object is thrown straight up from the ground. The height after t seconds is given by the formula h(t) = -2t3 + 87t² + 169 (a) The time in seconds when the object reached the highest point was Note: Round to 4 digits after the decimal point, if rounding is required Oos O 21.75 s O 29 S O None of the other answers O 169 s O 65.25 s (b) The height is maximized at the critical point x = a because the second derivative test found O f'(a) was positive to the left of x = a and negative to the right Of"(a) < 0 Of"(a) = 0 O f'(a) = 0 O f"(a) > 0 O f'(a) was negative to the left of x = a and positive to the right