Energy consumption for n times x/n mass function?

[Mikica Ludja]

Or simpler:
Do multiple smaller objects consume more energy to move than one larger (same mass)?
And is there a known ratio/function?

Thanks

 

[anorlunda]

Newton's second law says f=ma. So what do you think the answer is?

 

[Mikica Ludja]

Thanks for the answer.

Can i safely transfer that into a fact that a x-kg car has same fuel consumption as two x/2-kg cars? Or is that an engineering question?

 

[anorlunda]

Thanks for the answer.

Can i safely transfer that into a fact that a x-kg car has same fuel consumption as two x/2-kg cars? Or is that an engineering question?

No.. Cars are dominated by friction. They use gas even when not moving no matter what they weigh. They have four tires no matter what they way.

For cars, simple physics is not enough, it is an engineering question.

 

[Mikica Ludja]

Wanted to check some basics first.

Thanks :)