3 years ago

A penny is dropped from the top of the chrysler building(320 m high). How fast is it moving when it hits the ground?

1 answer:

7 0

Answer:

As the penny falls 320 meters, its vertical velocity increases at the rate of 9.8 m/s each second. Use the following equation to determine its speed when it hits the ground. 

 

vf^2 = vi^2 + 2 * a * d, vi = 0 

vf^2 = 2 * 9.8 * 320 

vf = √6272 

 

This is approximately 79 m/s. I hope this helps you to understand how to solve this type of problem.

Step-by-step explanation:

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