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Follow the directions below, then answer the question.

Push the crate with 500 N of force while you count to 5, then stop pushing.
After you stop pushing, notice the speed of the crate.
Restart the simulation. (You will need to recheck all the boxes.)
Remove the 50 kg crate, and replace it with the 200 kg refrigerator.
Push the refrigerator with 500 N of force while you count to 5, then stop pushing.
After you stop the refrigerator, notice the speed of the refrigerator compared to the crate.

Which object had the greatest change in speed? Explain why.

The 50 kg crate had the greatest change in speed. This is because the force applied (500 N) was the same for both the crate and the refrigerator, but the mass of the crate was much smaller than the mass of the refrigerator. According to Newton's second law of motion (F=ma), the acceleration of an object is directly proportional to the force applied and inversely proportional to the object's mass. Therefore, the crate experienced a greater acceleration than the refrigerator due to its lower mass, resulting in a greater change in speed.