Weight vs Speed: Which Generates More Force?

[Reptile202]

If object A is more heavier and durable than object B, and both objects are traveling at the exact same speeds, which one would generate more force?

I know it sound like a silly question, but I've learned that momentum equals impact force. So I was wondering if the extra weight and durability would create more of an impact force than object B?

 

[NascentOxygen]

Compare something made of aluminium with one of the same size & shape but of steel?