on the subject of SI versus imperial units

 

I'm a freshman physis major in the US, and the last time I saw an imperial unit in a science classroom I was in grade school (up to age 14 in US)

 

Physics ust doesn't make sense without SI units, who the hell woul want to measure mass in slugs?

I don't have any time to exacts right now, but I'd imagine Number 3 would be solved like this: F=ma, since mass in constant, change the F to a, and adjust. Since a is constant till 0.04, use v=u+at. After that express it as a function of time, integrate to achieve velocity, substitute 0.08 into that equation.

Ok don't laugh I realised i did have a tiny bit of time. I basically did what i said before, and i get v= 714.285714285 repeating 714285. Am i correct?

EvoN1020v mind if I post next weeks question?

Ok don't laugh I realised i did have a tiny bit of time. I basically did what i said before, and i get v= 714.285714285 repeating 714285. Am i correct?

 

Very good Ragib. The answer is [math]714 m/s[/math]. I'll put up the complete solution for this question when I have the time, or I can wait for other people to attempt the question themselves.

 

EvoN1020v mind if I post next weeks question?

 

You're welcome to post a new question in 2 weeks' time. Blike just e-mailed me saying that he will re-create the front page with a featured physics questions thread on it. I'll post the first question, and then you can post a question after that.

 

Cool with you?

Very good Ragib. The answer is [math]714 m/s[/math]. I'll put up the complete solution for this question when I have the time, or I can wait for other people to attempt the question themselves.

 

 

 

You're welcome to post a new question in 2 weeks' time. Blike just e-mailed me saying that he will re-create the front page with a featured physics questions thread on it. I'll post the first question, and then you can post a question after that.

 

Cool with you?

 

Yep sure...