Use the equation Vf=Vi+(A)(t)
since you're trying to find the initial velocity, rearrange the equation to say Vi=Vf-(A)(t)
so, Vi=230-(42)x(2.5)
final answer: Vi=125m/s
Answer:
Nails rusting over time as they are exposed to oxygen
Explanation:
New substance with new property is formed
It have also changed the chemical property of the substance
It is difficult to reverse the change etc...