Go Back   Physics Help Forum > High School and Pre-University Physics Help > Kinematics and Dynamics

Kinematics and Dynamics Kinematics and Dynamics Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Feb 11th 2009, 07:30 PM   #1
Junior Member
 
Join Date: Feb 2009
Posts: 8
velocity question - Jeep jumping river

a bridge that was 15.0 m long has been washed out by the rain several days ago. how fast must a jeep be going to successfully jump the stream? although the road is level on both sides of the brdige, the road onthe far side is 2.0m lower than the road on the near side.
lindsayboyle is offline   Reply With Quote
Old Feb 12th 2009, 06:41 AM   #2
Member
 
Join Date: Dec 2008
Posts: 65
The limit case is when the jeep will drop by 2 m during the jump.
from d=1/2gt^2 you find the time.
t=0.63 s
The jeep has to move horizontally by 15m during this time.
15m=v*0.63s
So find the speed.
mircea is offline   Reply With Quote
Old Feb 12th 2009, 05:18 PM   #3
Junior Member
 
Join Date: Feb 2009
Posts: 8
Thank you so much for your help. I have been trying to figure out the answer to this for awhile now. I know all the formulas and all the given information, its just a matter of what to do with all of it that gets me. I am terrible at physics.

Thanks again
lindsayboyle is offline   Reply With Quote
Reply

  Physics Help Forum > High School and Pre-University Physics Help > Kinematics and Dynamics

Tags
jeep, jumping, question, river, velocity



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
How to find the direction of the velocity of a man swimming across a river maxcartwright Kinematics and Dynamics 4 Aug 21st 2016 07:36 PM
Bungee jumping: Maximum velocity Punch Energy and Work 3 May 14th 2013 09:20 AM
Jumping a river CalculusCrazed Kinematics and Dynamics 1 Sep 20th 2010 11:53 AM
A powerplant near a river- entropy question C.E Thermodynamics and Fluid Mechanics 1 Jun 6th 2009 03:19 AM
jumping frog question dygprcn Kinematics and Dynamics 4 Dec 17th 2008 10:06 AM


Facebook Twitter Google+ RSS Feed