Derivation of the Change in Height of Ballistic Pendulum

Derivation of the Change in Height of Ballistic Pendulum

cos q = H/L	Pythagoran Theorem
H = L cos q	Multiply both sides by L
L = H + H_change	It is the same string
L = L cos q + H_change	Substitute
H_change = L - L cos q	Subtract L cosq from both sides

H_change = L(1 - cos q )

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