(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An object starts at rest and accelerates at 2.5 m/s^2 for 12 seconds. It then moves at a constant velocity for 5.0 seconds and then slows down uniformly at 1.5 m/s^2 until it stops. Calculate:

a) the constant velocity

b) the time taken for deceleration

c) the total displacement

2. Relevant equations

"possibly"

a=v/t or any of the five equations for uniform acceleration

3. The attempt at a solution

I know how to do part c) but i need the first two answers which i'm not sure how to use.

For a) i don't know which method to use: a=v/t or some kinematic equation, or which acceleration to use or which time (the 12 seconds while its accelerating, or the 5 seconds for constant velocity.

For b) i don't know how to do either because it i based on part a)

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# Homework Help: Calculating constant velocity, deceleration, and total displacement

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