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## Main Question or Discussion Point

Hi

This is probably simple but i just can't seems to work it out:

assume no gravity or friction:

car 1 traveling at a constant speed of 50m.s in one direction

Car 2 traveling at a constant speed of 50m.s on top of car 1 in same direction

car 3 traveling at a constant speed of 50m.s on top of car 3 in same direction

etc etc.

What is the speed of car 3 relative to the ground? 150m.s?

What formula would you use to arrive at the answer?

So

Thank you

This is probably simple but i just can't seems to work it out:

assume no gravity or friction:

car 1 traveling at a constant speed of 50m.s in one direction

Car 2 traveling at a constant speed of 50m.s on top of car 1 in same direction

car 3 traveling at a constant speed of 50m.s on top of car 3 in same direction

etc etc.

What is the speed of car 3 relative to the ground? 150m.s?

What formula would you use to arrive at the answer?

So

**if**the above statement is correct,would it be correct in saying, if you had to pile more and more cars running at 50m.s, on top of each other, you should finally reach the speed of sound? Theoretically of cos.Thank you