# ^Problem solving tips

**^Problem solving tips**

- If a particle is moving on a circular path with angular speed w about the center, then its angular speed about a point on the opposite side of the diameter passing through it is w/2.
- If uniform speed remains constant then the motion is called uniform circular motion. Magnitude of v, a
_{t}& a_{n}respectively are - On a rigid body all points undergo same angular displacement (θ) in same time interval thus all the points on a rigid body rotate at same angular speed (ω) & have angular acceleration (α), thus v, a
_{t}& a_{n}∝ r. Thus a point situated farthest from center circle will have maximum value of speed, tangential acceleration & normal acceleration. Also a point at center will have zero values of v, a_{t}& a_{n.} - is a unit vector directed radially or normally outwards.