What Is the Minimum Speed Required for a Swimmer to Jump Over a Ledge?

Thread starter britrich
Start date Sep 26, 2006
Tags

Motion Projectile Projectile motion

AI Thread Summary

To determine the minimum speed required for the swimmer to jump over a 1.75 m ledge from a height of 9 m, the concepts of projectile motion and kinematics are essential. The swimmer's initial horizontal velocity must be calculated to ensure he clears the ledge while falling. The time taken to fall 9 m can be derived from the equations of motion, which will then help in calculating the necessary horizontal speed. The discussion emphasizes the importance of understanding the relationship between vertical and horizontal motion in projectile scenarios. Proper application of these principles will yield the minimum speed needed for a successful jump over the ledge.

Sep 26, 2006

britrich

Projectile Motion Prob Need help asap please

A daring 510-N swimmer dives off a cliff with a running horizontal leap, as shown in the figure. he is 9 m above the ground n the ledge is 1.75 . what is the min. speed required for him to jump ova the ledge.

Physics news on Phys.org

Sep 27, 2006

mezarashi

Homework Helper

Can you show us some of the concepts you've learned from kinematics?

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...

View full post »

Thread 'A cylinder connected to a hanging 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...

View full post »

Thread 'Explain this asphalt sheen'

This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is The second part of the problem is exactly why you get this affect. And one more spoiler:

View full post »