|

Mechanics

New kid on the Block

 Joined: 19 Jun 2009 Post: 3
29 Jun 2009 14:22:40 IST
0 People liked this
2
510
a car is moving along a straight road with a uniform acceleration. it passes through two points P an
Engineering Entrance , Medical Entrance , AIPMT , JEE Main , AIIMS , JEE Advanced , Physics , Mechanics , Kinematics , NewtonsLawsCirMotion , Work Power Energy collisions , Rotation , Gravitation , Simple Harmonic Motion , Fluid Mechanics , Materials Wave Sound , Super Position , units dimensions , com momentum , shm , wave sound

a car is moving along a straight road with a uniform acceleration. it passes through two points P and Q separated by a distance with velocity 30km/h and 40km/h respectively. find the velocity of the car midway between P and Q.

Hot goIITian

Joined: 26 May 2009
Posts: 100
29 Jun 2009 14:25:08 IST
0 people liked this

dude you need to know the time between the two vel. or the distance bet the ptsor else the question is hypothetical

Hot goIITian

Joined: 20 Jun 2008
Posts: 191
29 Jun 2009 16:34:07 IST
0 people liked this

apply

v^2-u^2 =2as twice

1600=900+2as

2as=700

v ^ 2 =900+2a(s/2)

=900+700/2

=1250

v is sqrt(1250)

 Some HTML allowed. Keep your comments above the belt or risk having them deleted. Signup for a avatar to have your pictures show up by your comment If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team

## For Quick Info

Name

Mobile

E-mail

City

Class

### Find Posts by Topics

Physics

Topics

Mathematics

Chemistry

Biology

Institutes

Parents Corner

Board

Fun Zone

Vertical Limit

Top Contributors
All Time This Month Last Week
1. Bipin Dubey
 Altitude - 16545 m Post - 7958
2. Himanshu
 Altitude - 10925 m Post - 3836
3. Hari Shankar
 Altitude - 9960 m Post - 2185
4. edison
 Altitude - 10815 m Post - 7797
5. Sagar Saxena
 Altitude - 8625 m Post - 8064