Question

If a ball dropped from a tower reaches the ground after 3.5 seconds, what is the height of the tower?
Given: g = -9.8 meters/second^2

a) 56.00 meters
b) 60.03 meters
c) 62.08 meters
d) 62. 50 meters

Answer 1

Ok \[x=\frac{ 1 }{ 2 }g t ^{2}=\frac{ 1 }{ 2 }(9.8\frac{ m }{ s ^{2} })(3.5s)^{2}=60.025m\]The answer is b) 60.03 meters