gen x's latest activity
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gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.correct -
gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.But is this 100% correct? If you hold 20kg weight in one position, you consume more energy than if you dont lift anything?
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gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.What are shortcuts in case of engine? So engine that have more area under power curve in operating rpm interval where you shift gears...
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gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.When we talk about average power/torque/force, if I want to find average power under power curve in some rpm interval, I need to...
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gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.Car acceleration decrease when speed rise (even if aero/tire drag is zero), because thrust force decrease. Torque at wheels are smaller...
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gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.When I run is harder, but when I run I use more power , my leg rpm is higher and my force push on each stair is higher.
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gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.In case of bike, lets say my foot push on pedals only in half circle, when I am above pedal so my weight ( mg) make force on pedals. How...
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gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.When I decrease F and use higer gears ratio, I can incease my speeed, but my power still remain the same. Is my example with horse...
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gen x reacted to PeroK's post in the thread High School Why higher speeds need more power if the backward force is the same? with
Like.
Consider an object falling in vacuum under a constant gravitational force. The rate that kinetic energy is gained by the object... -
gen x reacted to Lnewqban's post in the thread High School Why higher speeds need more power if the backward force is the same? with Like.
One thing is work performed by the horse, and a different one is the time in which that work is done. Less time requires greater power...
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gen x replied to the thread High School Why higher speeds need more power if the backward force is the same?.Imagine if car travel in different medium so at 100km/ and 200km/h is same drag force at car. It turns out that car that travel at...
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gen x posted the thread High School Why higher speeds need more power if the backward force is the same? in Classical Physics.Power = Force v Speed Power of my horse = 104kgx9.81m/s^2 x 0.732m/s = 1HP =746W Force/tension in rope stay the same if horse run at...
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gen x replied to the thread Undergrad Calculate acceleration from power/torque graphs.You mean point where cruves from lower and higher gear intercept? yes here torque at wheel are the same
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gen x replied to the thread Undergrad Calculate acceleration from power/torque graphs.Torque at wheel is smaller in 4th gear then in 3rd gear, acceleration is smaller in 4th gear compare to 3rd gear.
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gen x replied to the thread Undergrad Calculate acceleration from power/torque graphs.In one gear (ex. in 3rd gear), max torque on wheel(max thrust=max acceleration) is not at engine max power, it is on engine max torque...
