- #1
Smileyxx
- 34
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Why is the normal force on the top of roller coster greater then mg?
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Why is the normal force on a roller coaster's peak greater than mg?
- Thread starter Smileyxx
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- Forces Rollercoaster
AI Thread Summary
The normal force on a roller coaster at the top of a loop is greater than the gravitational force (mg) to ensure riders remain securely in their seats. At the peak of a loop, the track exerts a downward force that must counteract both gravity and provide the necessary centripetal force to keep the coaster on the track. Conversely, at the top of a hill, the normal force is less than mg, and if the coaster's speed is insufficient, it could lead to a loss of contact with the track. The discussion clarifies that the context of the coaster's position—whether at a loop or a hill—significantly affects the normal force experienced. Understanding these dynamics is crucial for roller coaster design and rider safety.
- #2
koryargonic
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You mean at the top of a loop? Because if it's at the top of a hill it isn't.
- #3
howie8594
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Are you talking about the coaster on the inside of a loop at the top where the track would be pushing it down or the coaster being at the top of a hill where the track would be below the coaster?
- #4
howie8594
- 44
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If you were in a loop, and the force of gravity was greater than the normal force, you'd fall out of the ride.
If however you were going over the hill where the track was below you, the normal force would be less and if you were going fast enough, gravity wouldn't be enough to keep you on the track and you would fly off as a projectile.
If however you were going over the hill where the track was below you, the normal force would be less and if you were going fast enough, gravity wouldn't be enough to keep you on the track and you would fly off as a projectile.
- #5
Smileyxx
- 34
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Yes that's exactly what i was finding for.thanks br
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance)
My thoughts for the first case , one of them must be 12 volt while the other is 0
The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Here is what I tried
This question was actually asked in one of our engineering entrances.
The answer was 1D.
My teachers say that we have to use μₘ/fₘ to get to this answer. I cannot understand why. I'll be really glad if you could tell me the exact definition of power (numerically) that works in all scenarios.
The answer to this question is statements (ii) and (iv) are correct.
(i) This is FALSE because the speed of water in the tap is greater than speed at the water surface
(ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not?
(iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
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