Finding the average velocity for this problem

AI Thread Summary
To find Larry's average velocity for his run, first calculate the total displacement and total time. Larry runs 400 yards west and then 1000 yards east, resulting in a net displacement of 600 yards east. The total time taken for the run is 10 minutes. Average velocity is calculated by dividing the total displacement by the total time, yielding an average velocity of 60 yards per minute east. Understanding the distinction between average speed and average velocity is crucial in solving this problem.
ixerr
Messages
24
Reaction score
0

Homework Statement


Larry leaves home at 9:01 and runs at constant speed 400.0 yards due west to a lamppost. He reaches the lamppost at 9:06, immediately turns and runs due east 1000.0 yards to a tree. Larry arrives at the tree at 9:11. What is Larry's average velocity (in yd/min) for the entire run?


Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
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