How to set an object velocity?

[HitSShuo]

I want to set an object's velocity as input, but I didn't find the relative functions.
The APIs just provide setpos/ setorientation.

So, is there any reason for not providing the function to set velocity and what I can do to get this goal(set velocity)

[coppelia]

You can set the initial velocity of a dynamic shape. For that, use sim.setObjectFloatParameter(objectHandle,X,y), where X can be sim.shapefloatparam_init_velocity_x, sim.shapefloatparam_init_velocity_y or sim.shapefloatparam_init_velocity_z, and y the initial velocity in that direction.

Cheers