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You climb up a ladder, which was 3.4 m in height, and fell. If your mass is 65.8 kg, how fast would your velocity be right before you hit the ground upon falling?

User Zach Snow
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1 Answer

5 votes

Answer:

Below

Step-by-step explanation:

Your mass is irrelevant....here is why:

All of your POTENTIAL energy (mgh)

will be converted to KINETIC energy ( 1/2 m v^2)

so

mgh = 1/2 m v^2 divide both sides by 'm' <====then 'm' is gone !

gh = 1/2 v^2 now multiply by 2

2 gh = v^2 sqrt both sides

v = sqrt (2gh) = sqrt [ 2 ( 9.81)(3.4)] = 8.2 m/s

User Fred Strauss
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