1.

The angular displacement of a particle is givenby θ = t3 + t2 + t + 1 then, its angular velocityat t 2 sec is rads-

Answer»

angular velocity is d∅/dt = 3t²+2t+1 at t = 2sec , d∅/dt = 3*(2)²+2*(2)+1 = 12+4+1 = 17 rad-¹



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