Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Discover a wealth of knowledge from professionals across various disciplines on our user-friendly Q&A platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

Momentum data about the same objects in the same closed system is shown below.

\begin{tabular}{|c|c|c|}
\hline
Trial & \begin{tabular}{c}
Initial \\
Momentum \\
[tex]$( kg \cdot m / s )$[/tex]
\end{tabular} & \begin{tabular}{c}
Final \\
Momentum \\
[tex]$( kg \cdot m / s )$[/tex]
\end{tabular} \\
\hline
1 & 3.5 & 3.5 \\
\hline
2 & 3.7 & 3.7 \\
\hline
3 & 3.4 & 3.4 \\
\hline
4 & [tex]$X$[/tex] & 3.6 \\
\hline
\end{tabular}

What value should be in place of [tex]$X$[/tex]?

A. 3.4

B. 3.5

C. 3.6

D. 3.7


Sagot :

To determine the correct value for [tex]\( X \)[/tex] in the closed system, we need to understand that in a closed system, the law of conservation of momentum states that the initial momentum must be equal to the final momentum.

Given the data:
- In trial 1, the initial momentum is 3.5 kg·m/s, and the final momentum is 3.5 kg·m/s.
- In trial 2, the initial momentum is 3.7 kg·m/s, and the final momentum is 3.7 kg·m/s.
- In trial 3, the initial momentum is 3.4 kg·m/s, and the final momentum is 3.4 kg·m/s.
- In trial 4, the final momentum is given as 3.6 kg·m/s.

According to the conservation of momentum, the initial momentum for trial 4 must be equal to the final momentum for trial 4.

Therefore, the value for [tex]\( X \)[/tex] should be 3.6 kg·m/s since the initial momentum must equal the final momentum in a closed system.

So, the correct value in place of [tex]\( X \)[/tex] is:

3.6