Ramp & Load: Acceleration on an Incline

1 · Predict

If you release the load from rest and steepen the ramp's angle, what happens to its speed after the same amount of time?

• It speeds up faster — a steeper ramp gives a larger acceleration.
• It reaches the same speed — angle doesn't affect how fast it accelerates.
• It speeds up slower — a steeper ramp gives a smaller acceleration.

2 · Set Up

1. Open the Ramp & Load preset in the mechanics sandbox.
2. Select the ramp and use the Properties panel to set its incline angle for this trial.
3. Release the load from rest at the top and read its speed off the probe after the listed elapsed time.

3 · Collect Data

Plot speed (y-axis) against ramp angle (x-axis) for the fixed 1 s trials. Is the relationship a straight line?

4 · Analyze

1. Using v = g sin θ · t, compute the expected speed for each row and compare it to what you read off the probe.
2. The load's mass stays fixed at 3 kg across all three trials while the angle changes. What does that tell you about the relationship between mass and acceleration on a frictionless ramp?

5 · Extend

1. Two loads of different mass are released from the same angle at the same time. Which one reaches the bottom first? Use your data to justify your answer.
2. Real ramps have friction. If this ramp weren't frictionless, would the measured speed be higher or lower than your v = g sin θ · t prediction, and why?

The Physics Behind This Experiment

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