Y did u gt 3.6 when solving the motion question

To properly answer your question, I would need more specific information about the motion question you are referring to. However, in general, when solving a motion question, there are different equations and formulas that can be used depending on the given information and what you are trying to solve for.

One commonly used equation in motion problems is the equation of motion:

s = ut + 1/2at^2

Where:
s represents the displacement or distance traveled,
u represents the initial velocity,
t represents the time, and
a represents the acceleration.

If you provide the values for any three of these variables, you can use the equation to solve for the fourth variable.

It's important to note that without specific information on the question and the given values, I cannot determine why or how exactly 3.6 was obtained. If you provide more details, I can help you understand the steps involved in solving the specific motion problem.