The correct answer is Shale
Answer: the data appear to be ( linear )
The line of best fit is v= 0.003 t+ 0.003
Notice the the value of the v intercept is close to 0 so V and t are ( directly proportional)
The heavy one because mass times force is equal to speed. The lighter one has less mass to it goes faster without as much effort. I hope that helps!
~The picture below shall help :)
-Hope this helped ^_^
Answer:
gold and copper
Explanation:
but I think there is 1 more