The discussion centers on calculating the velocity of the tip of a 2m pole when it falls to the ground, with considerations for a 10kg weight on top. Participants question whether the pole falls from a vertical position or from a greater height. The need for more details about the scenario is emphasized to provide an accurate calculation. The thread is temporarily closed for moderation pending further clarification from the original poster. Overall, the conversation highlights the complexities involved in physics calculations related to falling objects.
#1
Dc2LightTech
23
1
what would be the velocity of the tip of a 2m pole that started from a vertical position to hitting the ground. what would be the velocity of a 10Kg weight was on the top?
@Dc2LightTech -- Please send me a Personal Message (PM*) to let me know if this question is for schoolwork and what you know about how to calculate this. Depending on that PM, we can try to move/unlock this thread. Thank you.
Hello everyone,
Consider the problem in which a car is told to travel at 30 km/h for L kilometers and then at 60 km/h for another L kilometers. Next, you are asked to determine the average speed.
My question is: although we know that the average speed in this case is the harmonic mean of the two speeds, is it also possible to state that the average speed over this 2L-kilometer stretch can be obtained as a weighted average of the two speeds?
Best regards,
DaTario
I know that mass does not affect the acceleration in a simple pendulum undergoing SHM, but how does the mass on the spring that makes up the elastic pendulum affect its acceleration? Certainly, there must be a change due to the displacement from equilibrium caused by each differing mass? I am talking about finding the acceleration at a specific time on each trial with different masses and comparing them. How would they compare and why?
This has been discussed many times on PF, and will likely come up again, so the video might come handy.
Previous threads:
https://www.physicsforums.com/threads/is-a-treadmill-incline-just-a-marketing-gimmick.937725/
https://www.physicsforums.com/threads/work-done-running-on-an-inclined-treadmill.927825/
https://www.physicsforums.com/threads/how-do-we-calculate-the-energy-we-used-to-do-something.1052162/