The bouncing person because the bounce helped him survive
Answer:
38.4 m/s
Explanation:
a) at t = 3.2s. ![x = 6 * 3.2^2 = 61.44 m](https://tex.z-dn.net/?f=x%20%3D%206%20%2A%203.2%5E2%20%3D%2061.44%20m)
b) at t = 3.2 + Δt. ![x = 6*(3.2 + \Delta t)^2](https://tex.z-dn.net/?f=x%20%3D%206%2A%283.2%20%2B%20%5CDelta%20t%29%5E2)
c) As Δt approaches 0. We can find the velocity by the ratio of Δx/Δt
![v = \frac{\Delta x}{\Delta t} = \frac{x_2 - x_1}{\Delta t}](https://tex.z-dn.net/?f=v%20%3D%20%5Cfrac%7B%5CDelta%20x%7D%7B%5CDelta%20t%7D%20%3D%20%5Cfrac%7Bx_2%20-%20x_1%7D%7B%5CDelta%20t%7D)
![v = \frac{6*(3.2 + \Delta t)^2 - 61.44}{\Delta t}](https://tex.z-dn.net/?f=v%20%3D%20%5Cfrac%7B6%2A%283.2%20%2B%20%5CDelta%20t%29%5E2%20-%2061.44%7D%7B%5CDelta%20t%7D)
![v = \frac{6(3.2^2 + 6.4\Delta t + \Delta t^2) - 61.44}{\Delta t}](https://tex.z-dn.net/?f=v%20%3D%20%5Cfrac%7B6%283.2%5E2%20%2B%206.4%5CDelta%20t%20%2B%20%5CDelta%20t%5E2%29%20-%2061.44%7D%7B%5CDelta%20t%7D)
![v = \frac{61.44 + 38.4\Delta t + \Delta t^2 - 61.44}{\Delta t}](https://tex.z-dn.net/?f=v%20%3D%20%5Cfrac%7B61.44%20%2B%2038.4%5CDelta%20t%20%2B%20%5CDelta%20t%5E2%20-%2061.44%7D%7B%5CDelta%20t%7D)
![v = \frac{\Delta t(38.4 + \Delta t)}{\Delta t}](https://tex.z-dn.net/?f=v%20%3D%20%5Cfrac%7B%5CDelta%20t%2838.4%20%2B%20%5CDelta%20t%29%7D%7B%5CDelta%20t%7D)
![v = 38.4 + \Delta t](https://tex.z-dn.net/?f=%20v%20%3D%2038.4%20%2B%20%5CDelta%20t)
As Δt approaches 0, v = 38.4 + 0 = 38.4 m/s
The Ozone layer is responsible for the absorption of harmful
radiation from the sun before it hits the surface or exterior structure of our
planet. It is known to be a belt of a known occurring gas, known as “ozone”
which is sealed around the Earth’s atmosphere. It serves as a shield, which absorbs
most of the sun’s ultraviolet radiation.
A 50w motor can do 500w in 5 seconds