Abaseball thrown noward at initial speed of 9.5m/s.
the approximate height of the ball, h metres, after t seconds is given by the equation h = -4.9t2 + 9.5t+1.
at the same time, a golf ball is hit upward at an initial speed of 12m/s. the approximate height of the ball, h metres, after t seconds is given by the equation h=-4.9t2 + 12t

a) when are both balls at the same height?

b) what is this height?