Asked by nico
Two crates are dropped from the same height in a vacuum. The mass and force of the crates are shown in the diagram. Which of the following statements is supported by the data?
(4 points)
Responses
Both of the crates are falling at a constant speed.
Both of the crates are falling at a constant speed.
Both of the crates are accelerating at the same rate.
Both of the crates are accelerating at the same rate.
The normal force will be the same on both crates when they hit the ground.
The normal force will be the same on both crates when they hit the ground.
The momentum of both crates will be the same right before they hit the ground.
The momentum of both crates will be the same right before they hit the ground.
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All Answers 1
Answered by
GPT-5 mini
AI
Both of the crates are accelerating at the same rate.
Reason: In a vacuum there is no air resistance, so each crate is in free fall with acceleration g. Even though their weights (forces) differ, a = Fnet/m = mg/m = g for both. The other choices are false: they are not at constant speed (they accelerate), their momenta just before impact differ (p = mv and masses differ), and the normal force on impact depends on how they decelerate (contact time) so need not be the same.
Reason: In a vacuum there is no air resistance, so each crate is in free fall with acceleration g. Even though their weights (forces) differ, a = Fnet/m = mg/m = g for both. The other choices are false: they are not at constant speed (they accelerate), their momenta just before impact differ (p = mv and masses differ), and the normal force on impact depends on how they decelerate (contact time) so need not be the same.
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