# Resolving a vector

1. A particle is performing uniform circular motion the necessary centripetal force is provided by T2 -mgcos(theta) ****** no problem :)

2 Now the problem how to resolve vector W in this case.

i'm confused :( how to resolve the vector. (confused in picking the anlge between the vector and the component)

pls help me by providing some hints pls..

kuruman
Homework Helper
Gold Member
Extend the line along W until it intersects the horizontal axis. You have just created a right triangle. One right side is W, one right side is the segment of the horizontal axis and the hypotenuse is T1. Can you find the component of W along T1?

Extend the line along W until it intersects the horizontal axis. You have just created a right triangle. One right side is W, one right side is the segment of the horizontal axis and the hypotenuse is T1. Can you find the component of W along T1?

my aim is to find a component of W which balances tension (T1) of the string and another component which tries to decrease the velocity of the object in circular motion in first quadrant.

kuruman
Homework Helper
Gold Member
I understand your aim. As you know, to describe the components of a vector, you need two perpendicular axes. What do you think these axes should be in this case? or but in both cases the angle between the vector w and its x componet is not congurent to (theta) {i think so}

kuruman
Homework Helper
Gold Member
... but in both cases the angle between the vector w and its x componet is not congurent to (theta) {i think so}

Your diagrams are fine, but you did not tell which way your axes point. In what direction is x? kuruman