All Questions
Tagged with newtonian-gravity projectile
200
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Why does a parachute decrease terminal velocity?
Terminal Velocity depends on two things: surface area and speed. These are inversely proportionate.
If both these variables affect terminal velocity, why do parachutes slow you down? Initially you ...
user8791
2
votes
0
answers
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Projectile motion equations @ very (!) high starting velocity [duplicate]
I've already searched Physics StackExchange for some similar question but I didn't find anything about this.
Assumptions:
Earth is a perfect sphere with it's core (X,Y,Z) -> (0,0,0) as a reference-...
- 573
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How does gravity affect bullets?
I read recently that if you hold a bullet in one hand and a pistol in the other, both hands at the same height, and subsequently fired the pistol at the same time as dropping the bullet, both bullets ...
- 133
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Ski Jumper's vertical velocity after $246.5m$ record?
What would be the vertical velocity of this ski jumper (ski flyer), after he first touches down, after he breaks the record with a $246.5m$ jump? What g force would he experience as he slows down?
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1
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What is the maximum efficiency of a trebuchet?
Using purely gravitational potential energy, what is the highest efficiency one can achieve with a trebuchet counter-weight type of machine? Efficiency defined here as transformation of potential ...
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