toughguy738
Sep28-08, 06:57 PM
1. The problem statement, all variables and given/known data
http://img255.imageshack.us/my.php?image=physpr3.jpg
http://img255.imageshack.us/my.php?image=physpr3.jpg
Draw the (a.) direction of velocity of the object and (b.) the direction of the net force on the object for each point and finally (c.) explain why you drew the vectors as you did.
The acceleration varies but is always directed toward point K.
2. Relevant equations
Work - Energy Theroem
Wnet = KEf - KEi
W = F (dot) d * cos(@)
3. The attempt at a solution
a. all the velocity vectors will be perpendicular to the curve but what I don't know is how to draw the magnitudes ...
b. all the force vectors should be drawn towards point k (Why? because F = ma, and the force will be in the same direction as acceleration) we also know the Force will be bigger near K than Not K because of the magnitued of acceleration will be bigger when the curve is sharper.
http://img255.imageshack.us/my.php?image=physpr3.jpg
http://img255.imageshack.us/my.php?image=physpr3.jpg
Draw the (a.) direction of velocity of the object and (b.) the direction of the net force on the object for each point and finally (c.) explain why you drew the vectors as you did.
The acceleration varies but is always directed toward point K.
2. Relevant equations
Work - Energy Theroem
Wnet = KEf - KEi
W = F (dot) d * cos(@)
3. The attempt at a solution
a. all the velocity vectors will be perpendicular to the curve but what I don't know is how to draw the magnitudes ...
b. all the force vectors should be drawn towards point k (Why? because F = ma, and the force will be in the same direction as acceleration) we also know the Force will be bigger near K than Not K because of the magnitued of acceleration will be bigger when the curve is sharper.