A toy rocket moving vertically upward passes by a 2.0-m-high window whose sill is 8.0 m above the…

A toy rocket moving vertically upward
passes by a 2.0-m-high window whose sill is 8.0 m above the ground. The rocket
takes 0.15 s to travel the 2.0 m height of the window. What was the launch
speed of the rocket, and how high will it go? Assume the propellant is burned very
quickly at blastoff.