I am having an object, it has particle system with velocity 0. I have a sphere that acts as the collision to collide with the object & its particle system. The sphere did interact with the object, but it seems like it does not collide with most of the particle (as shown in image below). May i know what could be the problem or setting that need to be adjusted? I will attach the blend file in case someone would like to have a look in it. Thank you so much.