bob
travels in a horizontal circle at constant speed, the string traces out
a cone. For the pendulum shown, mass m = 1.95 kg,
length
l = 1.03 m, and angle q = 36.9°.Correct! (This is the answer to part (a))

The acceleration
in the vertical direction is:
(A) g
(B) -g
(C) 0
(D) mv2/r