The sound gets louder as it gets closer and when it passes is gets softer
Remeber that frequency is the inverse of period length so need to get the reciprocal.
Answer:
let us use the expression v = ./2gS in both the cases.
a) In the first case g = 9.8 m/s^2 and S = 10.3 m.
So v = 14.21 m/s
b) in the second case, g = 1.64 m/s^2 and S = 4.2 m = 3.71 m/s
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Explanation:
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