Check My Answers for Velocity Questions | Helpful Advice to Ensure Accuracy

[Mrnickles]

if someone could check my answers to see if they are correct please this would help a lot, on the other hand, if they aren't, then advice would be greatly appreciated.

http://i21.photobucket.com/albums/b283/NMchugh/Various/veloctianswer.png

http://i21.photobucket.com/albums/b283/NMchugh/Various/veloctycircle.png

thanks

 

[Doc Al]

Please do not start multiple threads on the same problem.

You asked the first question here: https://www.physicsforums.com/showthread.php?t=421281

Did you read my comments there? You're still making a sign error.

 

[Mrnickles]

yes i did read your comments, and i did implement the corrections (except i missed out the (-) for vAx = 80)

i do apologize for making multiple threads, i just thought i'd post both questions together, as i wanted a check for one of my other questions...

 

[Doc Al]

For your second problem, you have the correct answer but again you need to pay closer attention to your signs.

 

[Mrnickles]

ahh, i see what i did wrong. since vBx will be traveling in a negative direction, although it gives the same answer, my workings were wrong, which in this case are important. thank you