projectile motion (1 Viewer)

[nfreidman]

can someone please explain how to do this -

the highest point of the trajectory of a body is 300m and its horizontal range is 5000m. Find the initial velocity and angle of projection.

thank you!

 

[RishBonjour]

does it land on the same plane?
if so, you can divide range by 2. so

at time t, y=300, x=2500. or alternatively, y=0, x=5000.

do some substitutions, and you should get V and theta

 

[Sindivyn]

Do you have answers? want to be sure before posting

 

[cineti970128]

I ve got V= 331.9m/s
angle = 13.5 degrees