Scientific Forums


 

Add reply Start new topic Start new poll


> Acceleration Computation
kimkibun
Posted: Apr 9 2012, 10:40 AM


Newbie
*

Group: Members
Posts: 1
Joined: 9-April 12

Positive Feedback: 0%
Feedback Score: 0


I hope you help me with this set of problems:

1.) a bus travels 400m between two stops. it starts from rest and accelerates at 1.5m/sqr.sec until it reaches a speed of 9m/s. the bus continues at this speed until it decelerates at 2m/sqr.sec until it comes to a halt. find the total time required for the journey.

2.) a passenger train starts from a station just a freight train on a parallel track passes in the same direction with the velocity of 15m/s. the passenger train has an acceleration of 80cm/sqr.sec. in how many seconds and how far from it after the passenger train has started will they be side by side?

3.) two trains, one traveling at 20m/s, and other at 40m/s, are headed toward one another along a straight level track. when they are 950m apart each engineer sees the other's train and applies the brakes. the brakes decelerates each train a a constant rate of 10m/sqr.sec. will the two trains collide? explain quantitatively.

i need a complete solution. thanks and GB!
Top
Robittybob1
Posted: Apr 9 2012, 03:30 PM


Advanced Member
*****

Group: Power Member
Posts: 6588
Joined: 15-October 11

Positive Feedback: 0%
Feedback Score: 0


QUOTE (kimkibun @ Apr 9 2012, 10:40 AM)
I hope you help me with this set of problems:
...
i need a complete solution. thanks and GB!

I think you need to show you have tried to do it yourself.

This post has been edited by Robittybob1 on Apr 9 2012, 03:31 PM
Top

Topic Options

Add reply Start new topic Start new poll


 

Terms of use