The angular position of a point on the rim of a rotating wheel is described by ∅ = (4.0 rad/s)t – (3.0 rad/s2)t2 + (1.0 rad/s3)t3, (a) What is the angular velocity at t = 2.0 s and at t = 4.0 s? (b) What is the average angular acceleration for the time interval that begins at t = 2.0 s and ends at t = 4.0 s? (c) What is the instantaneous angular acceleration at the beginning and end of this time interval?

Shane Macguire , 9 Years ago

Grade upto college level