Question

There is an object, which moves in a circular path with radius of 0.367 m and angular acceleration of 0.12 rad/s a) If the object starts at rest find the time required to get angular velocity of 1.52 rad/s? (2 points) b) Find net linear acceleration of the object at the time of angular velocity of 1.32 rad/s? (4 points) At a particular instant, a 1.5 kg particle's position is r = (21-4j+6k)m, its velocity is Y = (-3i+5j +2k) m/s, and the force on it is F -(12i +15j) a) What is the angular momentum of the particle about the origin? (2 points) b) What is the torque on the particle about the origin? (2 points)

Answer 1

This problem is from topic circualr motion.

Date: Page:- (a) og = wit at t 1.52 Qp = 1.52 rolle 012 t = 12.67 8 Ta = 0.12 rall tangential b) . a acceleration a = dR = (0.12) (0.367) a ae = 0.04 m/s2 a - ar = (W²R) = (1-32) 2 (0.367) ar= 0.64 m/s2 radil acceleration anet a2 + al O. 641 - t Net lineer acceleration