Man & Dog: DistanceTraveled Ques.

  • Thread starter Thread starter AraProdieur
  • Start date Start date
  • Tags Tags
    Assistance
AI Thread Summary
A man jogs at a speed of 1.5 m/s, while his dog waits for 1.6 seconds before running at 3.8 m/s to catch him. The key to solving the problem lies in determining the distance each has traveled when the dog catches up, ensuring that both have the same distance covered. The dog must cover the distance the man has traveled during the wait time plus the distance while both are moving. The solution requires setting the distances equal to find the point of intersection. Understanding that both the man and dog will have the same distance when the dog catches up is crucial for solving the problem.
AraProdieur
Messages
27
Reaction score
0
I am having a problem with a question, I am wondering if anyone can help me with it.
A man jogs at a speed of 1.5m/s. His dog waits 1.6s and then takes off running at a speed of 3.8m/s to catch the man. How far will they have each traveled when the dog catches up with the man? Answer in units of m.
 
Physics news on Phys.org
You need to show some work before we can help you. As a hint, what quantity must be the same for both the man and the dog when the catches the man up?
 
cristo said:
You need to show some work before we can help you. As a hint, what quantity must be the same for both the man and the dog when the catches the man up?

The acceleration?
 
AraProdieur said:
The acceleration?

No. Think about it like this. Imagine you are walking down the street and your dog is following you. When it catches you up, you are both in the same ______.
 
cristo said:
No. Think about it like this. Imagine you are walking down the street and your dog is following you. When it catches you up, you are both in the same ______.

velocity
 
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Thread 'A cylinder connected to a hanged mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top