# Motin in two dimensions,accelerated motin,motions

1. Aug 27, 2010

1. The problem statement, all variables and given/known data
The Acceleration of a particle increases linearly as bt with time.If the particle starts from U as initial velocity then the distance travelled in t seconds will be?

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Aug 27, 2010

please any one can give me some hint to solve this question?

3. Aug 27, 2010

### dharavsolanki

Ok. Fine. You haven't setup any equations as yet!

What equation can you make out of this?

Write that equation. Also, note that unlike your normal equations of x, this time you will NOT have an unknown! Instead, you'll have an unknown function.

When you solve the equation you obtain here, convert it into another "differential equation". That way, you'll have another unknown function. Integrate it again, and then make another equation, solve it again.

Hints :

What is a function? a = bt is a function. "a" being the function of time, since "a" depends on time!

Also, YOU HAVEN'T POSTED ANY RELEVANT EQUATIONS!

Can you guess what are the relevant equations here? Refer to your original definitions of speed, velocity, acceleration, distance, displacement etc. wrt mathematics!

4. Aug 27, 2010

### dharavsolanki

It's a 30 second problem. I have just not told you straightforward the solution, but given hints - THAT is why the reply was large!

5. Aug 27, 2010

### dharavsolanki

ALSO CHECK THE RELATED LINKS and SAVE THEM as PDF!

* motions on 2 dimensions
* motions in 2 dimensions
* projectile motin help ISU

THEY ARE AT THE BOTTOM OF THE PAGE!