Asked by l
An object is thrown vertically upward at 18m/s from a window and hits the
ground 1.6s later. What is the height of the window above the ground?(air
resistance is negligible)
ground 1.6s later. What is the height of the window above the ground?(air
resistance is negligible)
Answers
Answered by
drwls
Let h be the window height above ground.
At t = 1.6 seconds,
Elevation y = h + 18t -4.9t^2 = 0
so
h + 28.8 -12.54 = 0
h would be negative. It cannot hit the ground that soon if thrown upaward at that high speed. Recheck you numbers
At t = 1.6 seconds,
Elevation y = h + 18t -4.9t^2 = 0
so
h + 28.8 -12.54 = 0
h would be negative. It cannot hit the ground that soon if thrown upaward at that high speed. Recheck you numbers