Please help! I will award medal and fan! The height in meters of a projectile can be modeled by h = −4.9t2 + vt + s where t is the time (in seconds) the object has been in the air, v is the initial velocity (in meters per seconds) and s is the initial height (in meters). A soccer ball is kicked upward from the ground and flies through the air with an initial vertical velocity of 4.9 meters per second. After how many seconds does it land approximately?

Question

anonymous · Answer

How would I solve it with 2 variables?

anonymous · Answer

would you simplify that to 4.9t^3 then?

anonymous · Answer

so t=1 then?