The spool, which has a weight of 2lb, slides along the smooth horizontal spiral rod, r = (2) ft, where is in radians. If its angular rate of rotation is constant and equals = 4 rad/s, determine the tangential force P needed to cause the motion and the normal force that the spool exerts on the rod at the instant = 90¬∞.

The spool, which has a weight of 2lb, slides along the smooth horizon

1.	The spool, which has a weight of 2lb, slides along the smooth horizontal spiral rod, r = (2) ft, where is in radians. If its angular rate of rotation is constant and equals = 4 rad/s, determine the tangential force P needed to cause the motion and the normal force that the spool exerts on the rod at the instant = 90¬∞.
A.	P = 0.499 lb, N = 5.03 lb
B.	P = 5.50 lb, N = 15.65 lb
C.	P = 3.35 lb, N = 2.43 lb
D.	P = 1.677 lb, N = 4.77 lb
Answer» E.

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