How to make the same speed of Rigidbody2D on multiple resolutoins ?

Hi guys,
I’m making a 2d platformer game , I have a ball with Rigidbody 2D, when the screen is big the ball runs and bouces with the speed I want , but when the screen is smaller , it becomes faster . I want it to have the same speed in all resolutions.
any help please ? I’m new to unity and c#
Thank you

Hi,

I dont use 2d but maybe this can help you?

Thank you so much , it did help