If an asteroid were to come and hit Earth - Which I have learned is going to happen no matter what - I would that we would have an elaborate plan to save Earth. I thought of a plan that I think would be plausible. of course this is in the hopes that we have 20+ years to realize a deadly asteroid is coming to kill us. As we know an average size of an asteroid that would extinct all humanity is usually around 95kg, lets also say that the asteroid was travel at a speed of 2x10^10 m/s. Which is relatively fast. Next I want to find the force that they would need to hit the asteroid to change it's course, so therefore I would use the formula F=MA. However, in order to complete that formula I would need to find the mass of the asteroid. In order to do that I will use the formula M=VD. Now I need to find the volume and I am going to say that the asteroid is a sphere and use the formula 4/3(pie)^3. Once I did the math I came up with 5.5x10^21kg as the mass. Now we are able to complete the original formula for the force. Therefore you multiply 5.5x10^21 *2x10^10
once you do that you get 1.1x10^32  
So, in conclusion we would need to hit the asteroid at a force of 1.1x10^32 in order to save the human race! I truly hope we are able to save the earth when an asteroid is noticed. I also hope to not be alive when we do realize this dreadful scenario. 

Comments

  1. One thing to point out: 2x10^10 m/s is faster than the speed of light. As you’ll learn later this semester, NOTHING can travel that fast. That point aside, you also made one mistake that some other students also made of confusing a velocity with an acceleration. We'll review this in class, but be sure you know the difference before the test.

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