Question
Asked Oct 29, 2019
4 views
Catching a wave, a 74.6-kg surfer starts with a speed of 1.18 m/s, drops through a height of 1.80 m, and ends with a speed of 8.69 m/s. How much nonconservative work was done on the surfer?
help_outline

Image Transcriptionclose

Catching a wave, a 74.6-kg surfer starts with a speed of 1.18 m/s, drops through a height of 1.80 m, and ends with a speed of 8.69 m/s. How much nonconservative work was done on the surfer?

fullscreen
check_circle

Expert Answer

Step 1

The initial energy of the surfer is

help_outline

Image Transcriptionclose

Е — КЕ + РE mgh 2 (74.6kg) (1.18m/s)2+(74.6kg)(9.8m/s)(1.8m) 2 =1367.87J

fullscreen
Step 2

The final energy of ...

help_outline

Image Transcriptionclose

E, KE,+PE, 1 +0 2 1 (74.6 kg ) ( 8.69 m/s)2 2 = 2816.75J

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Other

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: 21. As the angle between two concurrent forces decreases from 180°, their resultant (3) remains the ...

A: Resultant force is given by,

question_answer

Q: A large hollow sphere is composed of a uniformaly positive charge gel. The hollow cavity has a radiu...

A: The charge density on the sphere is;

question_answer

Q: Hot water with a mass of .11kg is poured into a 0.25kg ceramic cup. The ceramic cup is initially at ...

A: For the thermal equilibrium the heat loss equals the heat gain. Here, the water losses the heat, and...

question_answer

Q: SWB-Ballupanddown 2 of 13 Review Constants A golf ball is thrown straight up from the edge of the ro...

A: Given information:Initial velocity of the ball (u) = 9.00 m/sTime after which the second ball is dro...

question_answer

Q: If a piece of an airplane suddenly becomes detached during flight, it will crash to Earth. Would it ...

A: Click to see the answer

question_answer

Q: Problem 1.6 A mask with a circular hole is placed between a small lighted bulb and a screen. How wou...

A: Given:A mask with a circular hole is placed between the screen and the small lighted bulb. 

question_answer

Q: i need help with these two questions!

A: a)The required speed is,

question_answer

Q: A 1.90-m-long barbell has a 21.0 kg weight on its left end and a 32.0 kg weight on its right end. If...

A: Click to see the answer

question_answer

Q: Constants I Periodic Table A 900 kg car is at the top of a 32 m -long, 2.5 incline. Its parking brak...

A: a)According to law of conservation of momentum, total momentum before collision is equal to total mo...