# Homework Help: Kinematic/Isolating Problem

1. Oct 23, 2007

### CanadianPhys

1. The problem statement, all variables and given/known data
Alright so I'm in grade 11 Phys Uni-prep class(in canada so im like 10x behind comparing to the states) and I'm having troubles Isolating some stuff.

2. Relevant equations
Eg.
d=(v1+v2/2)t
So lets say I want to isolate v1. I know how to isolate it for t which would be
d/v1+v2/2=t

3. The attempt at a solution
So my attempt for isolating v1 would be wrong which i already know.
v1=....... from d=(v1+v2/2)t

Plz need some help before thrusday, have a small quiz
I know what to do when I get the numbers, just some of the isolation stuff im iffy about.
ty

Last edited: Oct 23, 2007
2. Oct 23, 2007

### BerryBoy

Lets get the t on the other side:

$$d/t = v_1 + {v_2}/2$$

Does this help??

Sam

3. Oct 23, 2007

### CanadianPhys

possibly,
but i was hoping(im not sure if this is possible im just giviing myself random questions to do)
v1=........

4. Oct 23, 2007

### CanadianPhys

i got it :)

the answer was
v1= d/t - 1/2at^2

i did it step by step and i did it

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