Recent content by svtec

Mentor Edit: Please don't post complete solutions. Thank you.

i'm sorry. i meant that i have mg and tension pointing down. the centripital acceleration is pointing toward the middle of the circle which is not a force. i had a memory lapse. i got it all figured out now. thanks for the help. -andrew

i'll give that a try and see if that works. basically i have all three of my forces pointing down. correct?

if you have access to a digital camera you can take a picture of it and then host it online. i usually do this because it is hard to decipher what is going on without a picture. -andrew

non uniform circular motion??? A .400 kg object is swung in a vertical circular path on a string 0.500m long. If it's speed is 4.00 m/s at the top of the circle, what is the tension in the string there? i drew my free body diagram and have tension pointing up in the positive y direction. the...

i think after death everything is black and you have no concept of what happened because you are not yourself anymore. you have become some infinite happening that doesn't exist three dimensionally.

edit: today she said in class that she left out the part about the frictionless pulley. this makes the problem a little more reasonable.

i know. it seems that this problem has a case of ambiguity. i have given you the problem in its entirety leaving out some superfluous information, such as him, what, etc. i just wanted to see if anyone else could make sense of it. i would think that there would have to be a pulley...

i think as the climber reached the apex of the climb the bag would approach the floor. -andrew

i think the problem is trying to imply that the bag is equal in weight to the athlete, implying that they are in static equilibrium initially. the problem states it explicitly and that is why i refered to it. thanks... -andrew

newton's laws???? there is an athlete climbing a rope in gym class. he gets to a point halfway up the rope and is stationary. someone puts a bag of sand that is equal in weight to the athlete. they are both static and then the athlete starts to climb the rope, slowing and speeding up at random...

it's actually a pretty fun ride it is on top of this casino that is 1000 ft high and the ride goes up another 120 ft, so it puts you way up and you can see all of vegas and the surrounding desert.

stratosphere ride in las vegas??? i was going to write a short essay about the forces felt when you are on this ride and i wanted to confirm my often erroneus assumptions. it is a ride that sits at rest and then it catapults you with a fast initial velocity straight up and then it lets you...

i am kinda confused. this is my first quarter in physics and i seem to confuse the moment before collision and the stationary component of the final velocity. i guess that is why i was enlisting the help of people that are far more superior in their understanding of physics then myself...

i figured that when the snowball made contact with the target it's velocity would be 0.