^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.
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• is a unit vector directed radially or normally outwards.
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