A block attached to a horizontal spring with a spring constant k = 200 N/m is displaced to x = +6 cm and released from rest. The time needed for the block to reach x = +6 cm for the first time is 0.2 sec. Determine the maximum restoring force applied on the block and its maximum acceleration.

A block attached to a horizontal spring with a spring constant k 200 Nm is displaced to x 6 cm and released from rest The time needed for the block to reach x 6 class=

Respuesta :

Given:

The spring constant of the spring is k = 200 N/m

The maximum displacement of the spring is x = 6 cm = 0.06 m

The time period is T = 0.2 s

To find the maximum restoring force and the maximum acceleration.

Explanation:

The maximum restoring force applied on the block can be calculated as

[tex]\begin{gathered} F=kx \\ =200\times0.06\text{ } \\ =\text{ 12 N} \end{gathered}[/tex]

First, we need to calculate angular frequency.

The angular frequency can be calculated as

[tex]\begin{gathered} \omega=\frac{2\pi}{T} \\ =\frac{2\times3.14}{0.2} \\ =31.4\text{ rad/s} \end{gathered}[/tex]

The maximum acceleration can be calculated as

[tex]\begin{gathered} a=x\omega^2 \\ =0.06\times(31.4)^2 \\ =59.2m/s^2 \end{gathered}[/tex]

Final Answer: The maximum restoring force is 12 N and the maximum acceleration is 59.2 m/s^2.

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