A kangaroo jumps up with an initial velocity of 12 meters per second from the
ground (assume its starting height is 0 feet). Use the vertical motion model, h = -
4.9t2 + vit + hi, where vi is the initial velocity in feet per second and hi is the height
in feet, to calculate the amount of time the kangaroo is in the air before it hits the
ground again. Round your answer to the nearest tenth. Time in the air:
seconds