Register to reply

Acceleration and water height

by Swatch
Tags: acceleration, height, water
Share this thread:
Aug3-05, 04:33 AM
P: 89
I'm having trouble with this problem here.

A U-shaped tube with a horizontal portion of lenght L contains a liquid. What is the difference in height between the liquid columns in the vertical arms if the tube has an acceleration toward the right?

There must be a net force to the left that presses the liquid to the left. In the right column there must be a pressure greater than the atmospheric pressure. But I don't know how to relate the lenght of the tube to the answer. Could someone please give me a clue how to solve this.
Phys.Org News Partner Science news on
Mysterious source of ozone-depleting chemical baffles NASA
Water leads to chemical that gunks up biofuels production
How lizards regenerate their tails: Researchers discover genetic 'recipe'
Aug3-05, 07:26 PM
P: 211
why must there be a force to the left? acceleration is to the right. what makes you think that there is pressure greater than atm. on the right. could you explain your logic.
Aug3-05, 07:55 PM
P: 89
The tube accelerates to the right. The water goes to the left, so there must be a force pressing it to the left. I know its not really a force, but It helps thinking of it that way. When you drive a car in a circle your body gets pressed to the sides. Your body is not in a an inertial frame of reference neither is the water. Is this not true?

Register to reply

Related Discussions
Height of cliff above water Introductory Physics Homework 4
Find the height of the water Engineering, Comp Sci, & Technology Homework 4
Tube Radius and water height General Physics 5
Height Ratio of A Coin below the Water Advanced Physics Homework 1
HELP! relationship between rate of flow of water and height of water column Introductory Physics Homework 1