Answer: Well depth is 30.17 m
Step-by-step explanation:
Use equation S=G*t^2/2
time of coin need to hit the bottom of well is 2.48 s.
G(gravity)=9.81 m/s"2
S=9.81m/s"2*2.48s*2.48s/2
S=9.81m/s"2*6.15s"2/2
S=60.335m/2
S=30.17 m
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