Mass vs. compression with rollers

[D9 XTC]

Let's say the is a piece of wood with a few legs supporting it. There is a weight on it that weighs 500 lbs on the wood with rollers under it so it can move. Next to that is a clamp, let's say weighing 50 lbs, clamped onto the wood that is exerting the same amount of pressure onto the wood as the weight. The clamp also has rollers (weird yes...). The rollers on both produce the same amount of friction.

My question: does the clamp take less force to move having less mass yet exerting the same amount of pressure?

 

[Drakkith]

Yes, the less massive object, the clamp, takes less work to move than the other object.