The mass of the ball is m = 2.1 kg, and the string’s length is l = 2.0 m. The ball is released from rest in position 1 and swings to position 2, where θ = 40 degrees. Determine the vertical position 1 (h1) measured from h2 where (h2 = 0).
a) 1.26 m
b) 1.55 m
c) 1.79 m
d) 2.10 m