What is the length of the y-component of the vector plotted below? a. 2 b. 3 c. 4 d. 0

C. 4

Explanation:

In the graph, we can notice that each tick corresponds to a length of 1 unit.

The x-component of the vector is the projection of the vector itself along the x-axis, while the y-component of the vector is the projection of the vector itself along the y-axis.

By projecting the end of the arrow on the two axes (x- and y- axis), we see that the length of the two components are:

x-component: 3 units

y-component: 4 units

Since the problem is asking us the length of the y-component, the correct answer is

C. 4

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the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.