Question 507053
the vertical equation (the y-direction) is ___ y = -(1/2)gt^2 + vt + y0 ___ or ___ y = -4.9t^2 + 2t + 7


ymax occurs on the axis of symmetry of the parabolic equation ___ t = -(2) / [2(-4.9)]
___ calculate t and substitute into the equation to find ymax



analytically, it takes about 1/5 sec for the upward velocity to go to zero
___ during which time the distance traveled is about 1/5 m
___ so ymax is about 7.2 m