Asked by Cam
How do I figure out how long it takes two runners to have the same momentum if I am given a, m, and Vi for both runners?
Runner A= 85kg, 2ms-2, Vi=1ms-1
Runner B= 65kg, 3ms-2, Vi=0ms-2
I don't want an answer, just which equations to use or a hint.
Runner A= 85kg, 2ms-2, Vi=1ms-1
Runner B= 65kg, 3ms-2, Vi=0ms-2
I don't want an answer, just which equations to use or a hint.
Answers
Answered by
Scott
momentum is mass times velocity
velocity is ... Vi + (a * t)
write their momenta in terms of t
set the expressions equal, and solve for t
velocity is ... Vi + (a * t)
write their momenta in terms of t
set the expressions equal, and solve for t
Answered by
Cam
So p=m*Vi + (a*t)
85*1+2t=65*0+3t
85+2t=3t
85=t?
Which is incorrect obviously. I know from other failed methods that the answer is ~3.7seconds.
What am i doing wrong?
85*1+2t=65*0+3t
85+2t=3t
85=t?
Which is incorrect obviously. I know from other failed methods that the answer is ~3.7seconds.
What am i doing wrong?
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.