Web VPython 3.2

# object setup 
road = box(pos = vec(0,0,0), size = vec(10,0.5,1))
cart = box(pos = vec(-4,0.5,0), size = vec(1,1,0.9), color = color.red, velocity = vec(0,0,0))

# parameters and initial conditions
cart.velocity = vec(5,0,0) # m/s

# time setup 
t = 0
dt = 0.01
tf = 2

# loop to do physics
while cart.pos.x < 4:
    rate(100)
    cart.pos = cart.pos + cart.velocity*dt
    
    t = t + dt
print('t = ', t, 's')