Thursday
April 17, 2014

Homework Help: math

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

First Name:
School Subject:
Answer:

Related Questions

math - I am trying to solve a problem using Newton's equation, which is (-1/2)(...
English - 1. He can not solve the math problem. 2. He cannot solve the math ...
Math - Could someone please help me with this math problem. I am lost on trying ...
Math - Are you trying to solve for x, n or p? solve for n Show me how to work ...
Calculus - Hi there I am having some troubles trying to do my calculus homework ...
trig - I'm trying to see if the teacher didn't give us the right problem or if I...
Math problem - You have $60.00 in your wallet and want to buy some new CDs. If ...
math - trying to solve fraction problem 2/3+3m/5=31/15 been too long....
business math - I'm trying to solve this problem: What sinking fund payment ...
Calc Help - demand = (p+1)sqroot(q+1)=1000. Find elasticity of demand at a price...

Search
Members