Design and Engineering Forum

Forum Moderators: randykimball, Administrator | POSTING POLICY / RULES

Newton's law seem to be incomplete....
Post Reply   Engineering Forum
Posted by: rikas ®

02/19/2009, 22:45:01

Author Profile
eMail author
Edit

hi all,
we r all aware of newtons third law. but does it satisfy all the practical things. I need a clear understanding of this law. its easy when we take the case of jet propulsion. if i push an object, it moves. so where s the reaction. there im overcoming its inertia. Can anyone explain me it practically..







Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
View All   | |

Replies to this message

: Newton's law seem to be incomplete....
: Newton's law seem to be incomplete.... -- rikas Post Reply Top of thread Engineering Forum
Posted by: zekeman ®

02/19/2009, 23:58:12

Author Profile
eMail author
Edit

You're mixing up two laws. The third law is the most obvious.
If you push something with a force ,F, it pushes back with the SAME force.F=d(mv)/dt is third law, concerning overcomng inertia as you put it.It is the quantification of the first law.







Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
Where am I? Original Top of thread | |
: : Newton's law seem to be incomplete....
: : Newton's law seem to be incomplete.... -- zekeman Post Reply Top of thread Engineering Forum
Posted by: rikas ®

02/20/2009, 02:17:44

Author Profile
eMail author
Edit

thanks for ur interest..F=d(mv)/dt is derived from the second law right? i m clear with that..where does the equal reaction goes..







Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
Where am I? Original Top of thread |   |
: Newton's law seem to be incomplete....
: Newton's law seem to be incomplete.... -- rikas Post Reply Top of thread Engineering Forum
Posted by: traingdt ®

02/19/2009, 23:51:24

Author Profile
eMail author
Edit

When pushing something, the "reaction" is the pressure you feel on your finger.








Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
Where am I? Original Top of thread | |


© Copyright 2000 - 2024, by Engineers Edge, LLC All rights reserved.  Disclaimer