# Speed and location

1. Apr 15, 2017

### mike32

1. The problem statement, all variables and given/known data
A body moves in a straight line along the x-axis. Its expansion as a function of time is:

Given that at the moment t = 0 its speed was v0 in the positive direction of the x axis, and its position was at x0.

1. the body velocity in meters per second has a given moment t0?

2. What is a body position on the x-axis in meters include a given moment (t=t0)?

2. Relevant equations
k = 24 m sec-3
b = 12 m sec-2
v0 = 3 m sec-1
x0 = 2 m
t0 = 5 sec

3. The attempt at a solution
Made with integral limit t-t ,Got 240 speed and location 1200 , And this error

2. Apr 15, 2017

### kuruman

Can you show the details of how you did the integrals?

3. Apr 15, 2017

### haruspex

The "relevant equations" are supposed to be general physics equations that you feel may apply to the problem, not facts specific to the question.
An example here might be $\Delta v=\int _{t_i}^{t_f}\ddot x.dt$. In that equation, what does Δv represent?

4. Apr 15, 2017

### mike32

speed

5. Apr 15, 2017

### haruspex

Not exact enough. What is the Δ there for?

Last edited: Apr 16, 2017