Question
Asked Dec 8, 2019
65 views

A football player, with a mass of 75.0 kg, slides on the ground after being knocked down. At the start of the slide, the player moves at a speed of 3.90 m/s before coming to rest. The coefficient of friction between the player and the ground is 0.700

(a)
Find the change in mechanical energy of the player (in J) from the start of the slide to when he comes to rest.
 
(b)
How far (in m) does the player slide?
 

 

check_circle

Expert Answer

Step 1

a)

The required change in mec...

help_outline

Image Transcriptionclose

(AE) =- m? (75)(3.9)² =570.38 J

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

Related Physics Q&A

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

Q: A horizontal block-spring system with the block on a frictionless surface has total mechanical energ...

A: As per our guidelines, we only answer one question per session with maximum of three subparts. As, y...

question_answer

Q: A 5.0kg pan of water has an initial temperature of 15 degrees Celsius to bring to a boil.  How much ...

A: The mass of pan of water (m),

question_answer

Q: Derive the buoyancy force formula starting with the gauge pressure versus depth relation for static ...

A: The variation of pressure with depth is that the pressure will be increased when the depth is more. ...

question_answer

Q: KHomework #9 Problem 11.47 17 of 18 Review I Constants A box of negligible mass rests at the left en...

A: Given data:Length of the plan, L = 2.50 mMass of the plank, m = 29.0 kgWidth of the box = 75 cm = 0....

question_answer

Q: As the solar nebula cooled, which compounds were the first to condense from a gas to a solid?   ...

A: Answer:(C) The metals were the first to condense from a gas to a solid.

question_answer

Q: 1) In a sinusoidal electromagnetic wave in a vacuum, the electric field is given by  E=Emaxcos(ky+wt...

A: Given:Equation of electromagnetic wave in vacuum is,

question_answer

Q: Inductive charging is used to wirelessly charge electronic devices ranging from toothbrushes to cell...

A: Click to see the answer

question_answer

Q: Problem 2:  Special sections of roadway are sometimes paved with “rumble strips” to alert inattentiv...

A: (b) write the expression for equation of motion

question_answer

Q: Some states allow the use of aluminum wire in houses in place of copper.  If you wanted the resistan...

A: Aluminum is more resistive than copper, hence it is required bigger Aluminum wire to allow same resi...