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1/T, P., LEGENDS' (MGDN) STUDY MATERIAL-I PUC PHYSICS (NCERT)-Motion in a straight ine, ABOVE NOTE CONTINUED, Where 0 is the angle covered by the body in time T, For one rotation, = 2n andt = T (period), = 2 n f, since, 1. Angular velocity is a vector quantity., 2. Its Sl unit is radian per second or rads, 3. Its dimensional formula is [M°L°T'], Relation between linear velocity (v) and angular velocity (@), ӨР, C., Let de and dx (between P & Q) be the angular and linear displacements, respectively of a particle moving in a curved path in time, dt . Let, radius of, circular path ., We have , Linear velocity =, Linear displacement, %3D, Time, xp, = A, dt, xp, op :., dt, op 1= x =, op, = M .., MJ = A, Centripetal acceleration, It is the acceleration of a body moving in the circular path., This acceleration is along the radial line and always directed towards, the center of the circular path.