Answer:
c = 180
Explanation:
Varies joint with d and the square of g
c = k d g^2 where k is a constant
30 = k * 15 * 2^2
30 = 60k
30/60 = k
1/2 = k
c = 1/2 d g^2
Let d = 40 and g=3
c = 1/2 ( 40) (30^2
c = 20 (9)
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