Projectile

clg
fastgraphics
rem Initial variables
speed = 70 :gravity = 9.81
angle=70: height=0 :h1=0 :distance=0
t=0:dt=0.005

angle=pi*angle/180
hspeed = speed*cos(angle)
vspeed = speed*sin(angle)
while height>=h1
clg
t=t+dt : h1=height
vspeed = vspeed - gravity*dt
height = height + vspeed*dt
distance = distance + hspeed*dt
circle distance,300-height,3
text 10,10 ,"Time "+t
text 10,20, "Height "+height
text 10,30 ,"Distance "+distance
refresh
end while