Question

Can you design your own kinematics word problem involving uniform acceleration and share your solution. Attach an image of your diagram with all the relevant information labelled on it.Checklist for your problem and solution:Are all numerical values expressed to 2 significant figures or more?Are all units the appropriate metric units?Is the diagram large, clear, and well labelled?Does the diagram have a sign convention? You must design a problem with two directions.Is all the information given contained in the solution using proper physics symbols? i.e., for the unknown initial speed use v1= ?Are all numerical values substituted into the formula after the original formula is written down in symbol form?Have you followed each step of GRASP?

Answer 1

The problem is a homemade rocket, with an initial speed of 20m/s only in the y axis. Yo want to know the maximun high it can reach and the time it takes to reach that high

The speed diagram is the next one:

Solution

`\begin{gathered} v_0=(20m)/(s) \\ v_f=(0m)/(s) \end{gathered}`

The final speed is 0 because is when it reach the maximum high

`\begin{gathered} v_f=v_0-gt \\ (\mleft(v_f-v_0\mright))/(-g)=t \\ (-(20m)/(s))/(-(9.81m)/(s^2))=2.03s=t \end{gathered}`
`\begin{gathered} v^2_f=v^2_0-2gd \\ \frac{-\sqrt[]{20^2}}{-2\cdot9.81}=1.02m=d \end{gathered}`