Unit 6 Extra Credit

​Work & Energy Extra Credit Opportunity

By Thomas Berry

How does it work?

Complete this lesson and send me an edio chat once you have finished (or if you have questions). Bonus points will be awarded to your Unit 6 test.

A 50 kg skateboarder skates on a frictionless track.
They start from rest at point A, 7 meters above the ground.

Refer back to this image to assist with the questions on the following pages

Draw

Draw the energy bar graphs at point A

Math Response

If the skateboarder has a mass of 50 kg, what is their gravitational potential energy at point A (7 meters above the ground)

Type answer here

Correct Answer: 3430

Deg^°

Rad

Draw

Draw the energy bar graphs at point B (2 meters above the ground)

Math Response

How much gravitational potential energy does the 50 kg skater have at point B (2 m above the ground)

Type answer here

Correct Answer: 980

Deg^°

Rad

Math Response

How much kinetic energy does the 50 kg skateboarder have at point B (2 m above the ground)

Type answer here

Correct Answer: 2450

Deg^°

Rad

Math Response

What is the skateboarder's velocity at point B?

Report your answer to 1 decimal place

Type answer here

Correct Answer: 9.9

Deg^°

Rad

Hotspot

Where will the skateboarder have a maximum velocity?

Math Response

What is the skateboarder's maximum velocity?

Answer to 1 decimal place

Type answer here

Correct Answer: 11.7

Deg^°

Rad

Congratulations!

Please send me an edio chat to confirm that you are finished with this extra credit opportunity.

If you have questions about the lesson, feel free to ask!