In the experiment below, a student pulled each of three blocks in a straight line across a flat, horizontal surface. Figure 1 shows the results of the student measuring the PULLING FORCE (the force required to move each block at a constant speed) of the three trial. The data plots the pulling force in newtons (N), versus the block mass, in kilograms (kg)

Based on Figure 1 (below) an applied pulling force of 30.00 N would most likely have been required to maintain the constant speed of a block having a mass of:

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Captionless Image
4.00 kg.
5.00 kg
6.00 kg
7.00 kg
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1 answer

To determine the mass of the block that would require a pulling force of 30.00 N to maintain constant speed, you would typically refer to the graph plotting pulling force against block mass.

Without Figure 1 being visible, I can provide general guidance for analyzing such data:

  1. Identify the Relationship: The relationship between pulling force and mass might be linear if friction is constant and all blocks are similar in material and surface texture.

  2. Locate 30.00 N on the Y-Axis: When looking at the graph, find where the 30.00 N mark falls.

  3. Draw a Horizontal Line: Draw a horizontal line from the 30.00 N mark across to see where it intersects with the data line for the blocks.

  4. Find the Corresponding Mass: Note the mass value on the X-axis at the point of intersection. This value will indicate the mass of the block that requires 30.00 N to move at a constant speed.

Typically, if the data is linear, it'll be easier to interpolate between two known points if the exact intersection isn't clear.

If the options provided are 4.00 kg, 5.00 kg, 6.00 kg, and 7.00 kg, analyze the graph to find which mass corresponds to the 30.00 N pulling force.

If you can, describe the trend shown in the figure, and I can help you determine which mass correlates to the 30.00 N pulling force.