Lesson 4

Complete the Lesson 4 Assignment that you saved to your course folder.

 

Going Beyond

 

In the Focus section for this lesson, you were given an equation relating the velocity of a skydiver to the distance he or she has fallen before opening the parachute.

 

Use the equation where

• d is the distance the skydiver has fallen in metres
  
  
• a is the acceleration due to gravity, which on Earth is 9.8 m/s2
  
  
• vi is the initial velocity in m/s
  
  
• vf is the final velocity in m/s at distance d

Alfredo had an initial velocity of 0 and has fallen 200 m. How fast is Alfredo falling? Make sure to round your answer to the nearest tenth of a metre per second. Answer