Finding out force from a relation of position

[Vv anand]

Homework Statement

A particle of 1kg loves along x acid such that it's position x varies with time t as x =t(t-1)(t-2) m find the force exerted on the particle at t=0,1,2

Homework Equations

Just given that position x varies with time t as x=t(t-1)(t-2)

The Attempt at a Solution

After opening the bracket, i tried to differentiate it twice to get relation of acceleration but the answer i m getting is incorrect...I m getting a=4t-6 am i correct?

 

[Vv anand]

I just tried to solve it again and i solved it nvm..Thx