Momentum/Conservation of energy

  • Thread starter Thread starter Danielle_6
  • Start date Start date
  • Tags Tags
    Energy
AI Thread Summary
The discussion revolves around a physics problem involving momentum and energy conservation during a collision between two individuals, Fred and Brutus. Fred, weighing 50 kg, runs at 6.10 m/s, while Brutus, weighing 130 kg, approaches at 5.10 m/s. After colliding, they fall and slide on the ground, with the coefficient of kinetic friction given as 0.330. Participants emphasize the importance of applying the kinetic energy formula and understanding the relationship between force and friction to solve the problem. Engaging with the problem and making an initial attempt is encouraged for effective assistance.
Danielle_6
Messages
1
Reaction score
0

Homework Statement



Fred (mass 50.0 kg) is running with the football at a speed of 6.10 m/s when he is met head-on by Brutus (mass 130 kg), who is moving at 5.10 m/s. Brutus grabs Fred in a tight grip, and they fall to the ground. How far do they slide?The coefficient of kinetic friction between football uniforms and Astroturf is 0.330 .

Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
Danielle_6,

You got to try something before we can help you. At least a guess. What is the formula for kinetic energy? How does force relate to coefficient of kinetic friction? TRY!
 
Thread 'Struggling to make relation between elastic force and height'

Thread 'Struggling to make relation between elastic force and height'

Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
View full post »
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »

Similar threads

Physics momentum problem: units
Replies
12
Views
5K
Football Players: Solve Sliding Distance After Collision
Replies
5
Views
8K
Conservation of Energy with changing masses on ice
Replies
2
Views
1K
Finding velocity upon collision
Replies
12
Views
2K
Question about springs and rotational/translational energy
Replies
4
Views
1K
Energy and Momentum Problem HELP
Replies
1
Views
2K
Distribution of Energy when work is done on a system of 2 masses connected by a spring
Replies
17
Views
2K
Conservation of Momentum Problems: Find Final Velocity | Part A, B, C
Replies
8
Views
12K
Resistance force changing the velocity of an object
Replies
8
Views
1K
Momentum and impulse of a football
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top