Posted by **Maggie** on Tuesday, April 9, 2013 at 5:14am.

The problem I am trying to solve is from AQA Mechanics M1 and is as follows:

An object is moving in a plane. At time t=0, it is at the origin, O, and moving with velocity u. After 2 seconds it is at A where OA = -2i - 4j. After a further 3 seconds it is at B where AB = 10i - 40j. Show that this is consistent with constant acceleration a, Find a and u.

I don't understand what "Show that this is consistent with constant acceleration a"means, Do I have to find the acceleration between O and A and then between A and B and work out if they are the same? I've tried this with the initial velocity of u to find the acceleration for the first step and the velocity at the end of the first step then I tried to use the velocity as the start point for the second step with a different a hoping it would come out as the same value as a in the first step. The equations were enormous and I don't think this was the right approach. However, this question being unlike any example or other exercises in the chapter, I'm at a loss to know where to start.

Any clues?

## Answer this Question

## Related Questions

- Advanced Maths (Vectors) AQA Level, please help? - An object is moving in a ...
- maths - two dimensional motion - The problem I am trying to solve is from AQA ...
- Math - An object at rest begins moving horizontally on the x-axis, starting at ...
- Physics - a graph of an object moving a line (+ axes)on acceleration-time graph...
- MATH please help - An object at rest begins moving horizontally on the x-axis, ...
- Big MATH Help needed - An object at rest begins moving horizontally on the x-...
- Math/ Calculus Please HELP!!! - An object at rest begins moving horizontally on ...
- Calculus - An object at rest begins moving horizontally on the x-axis, starting ...
- calculus - Given the position function of an object moving in a straight line, ...
- Velocity and Displacement - A plane is sitting on a runway, awaiting takeoff. On...