A girl kicks her soccer ball with a velocity of 2m/s at an angle of 40 degrees with the horizontal. what is the total time? what is the ranger? and what is the max height of the ball?

1 answer

Break up the initial velocity in to vertical and horizontal components.

hfinal=hinitial+Vivertical*time- 4.9t^2
solve for time in the air, t.

range?
dfinal=Vihorizontal*total time

max height?

at max height, vv=0
vv=0=vvinitial- g t
solve for t at max height
h= vivertial*t-4.9t^2