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Found 6 results

  1. Say I have an aircraft. I know it's thrust and the properties needed to determine its drag. The craft accelerates at at 10 m/s^2. Making the drag equal to the thrust, I determine its max speed to be 180 m/s. If I were to ignore drag, I could simply say it would take 18 seconds to reach maximum velocity, but I am attempting to determine how long it would take to reach 180 m/s including drag. As the velocity increases, the drag force with increase exponentially, so the net thrust/rate of acceleration would decrease each second. Is there a way to wrap F=ma with F=(CApv^2)/2 to determine the time
  2. When I oslve problems in Kinematics I face difficulty of derivations but theory and formulas seems to be easier. When i solve problem it appears difficult.
  3. Hi, I am doing a review for a Dynamics exam, but I am having trouble with this one question (below). Please note the top of the picture contains the answers. What I have done is make a free body diagram that includes the tension of the cable and the weight of the rider/swing. So according to my calculations for part i: T= mg cos (30) = 680N The tangential acceleration is 0 Which according to the provided solutions is incorrect. Am I missing a force? I figured the tension is integral to finding the velocity of the rider. So I want to get my tension right before I proceed with finding the
  4. The Bernoulli 's principle is explained in this video, it's used in the most diverse range of applications ,from the simple spray mechanism of perfume to the lift in an airplane's wings . In this video both the Bernoulli 's principle and equation are explained , this is made without using much technical terms to make the video accessible to any curious out there . The purpose of my channel is to make physics fun and enjoyable , if you like to learn new stuff , visit my channel: https://www.youtube.com/channel/UC2avWDLN1EI3r1RZ_dlSxCw Facebook page : https://www.faceboo
  5. The Bernoulli 's principle is use in the most diverse range of applications ,from the simple spray mechanism of pertfume to the lift in an airplane's wings . In this video both the Bernoulli 's principle and equation are explained , this is made without using much technical terms to make the video accessible to any curious out there . The purpose of my channel is to make physics fun and enjoyable , if you like to learn new stuff , visit my channel: https://www.youtube.com/channel/UC2av... Facebook page : https://www.facebook.com/thisisintegza Twitter: https://twitter.com/Integza__
  6. PHYSICS OF OPTICS AND TIME Any corrections, different point of view and criticism will be appreciated pls. ABSTRACT: A brief proposition on the nature of light waves and how it affects the measurement of observers. Imagine a stationary observer who is at a distance D, away from a stationary source of light that emits a light signal at a constant period t, and let's assume that both parties are provided with a clock. If the source of light emits a light signal that travels away to the observer for a period of time t, both parties will agree that there is no change in the wavelength of the lig
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