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~christina~

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**[SOLVED] 2 particles moving along x axis.**

## Homework Statement

Two particles move along the x axis. The position of particle 1 is given by

x= (6.00m/s^2)t^2 + (3.0m/s)t + 2.00m

the acceleration of particle 2 is given by:

a = - (8.00 m / s^3) t and, at t = 0, its velocity is 20 m / s.

(a) Plot the velocities of the two particles versus time on a single graph.

(b) Is either of the particles instantaneously at rest between t = 0 and t = 3s?

(c) If the answer to

(b) is yes, then name the particle(s) and the time(s).

(d) Can the UAM equations be used to describe the motion of particle 2? Use the correct physics principles to support your response.

(e) Plot the accelerations of the two particles versus time on a single graph for the time interval given above.

## Homework Equations

a = - (8.00 m / s3) t and, at t = 0, its velocity is 20 m / s.

## The Attempt at a Solution

I want to check my thinking first of all since this a long problem.

Do I have to get the derivative of the equation of the equation given?

and what do I do with the values given for particle b?

How do I put them together to graph it??

for d.) what is a UAM equation???

~Thanks~