The direction of the angular velocity vector | thecuriousastronomer
Here, you'll learn about rotational motion, moments, torque, and angular momentum. Relationship between angular velocity and speed. (Opens a modal). For constant angular acceleration 𝛼 α we can work out equations of motion that are analogous Angular, Linear . Angular Displacement and Angular Velocity. Acceleration poetry: I fall faster than gravitational acceleration. . Her hourglass orbit caresses kisses all over our angular philosophy; . while our scientists discovered a connection between the speed of light and time, few centuries ago!.
Alas, Time stays, we go; Or else, were this not so, What need to chain the hours, For youth were always ours? Once in the days of old Your locks were curling gold, And mine had shamed the crow. Alas, time stays, we go! And it was so. Since ancient days, Light had acquired a religious and a spiritual significance.
Force velocity relationship
Since Light became associated with goodness, intelligence and ultimate realty; Light accompanies transcendence into Nirvana of Buddhist religious philosophy. In due course the Sun began to be worshipped as an important live-giving deity. To understand this connection between light and time, we must first understand something about the properties of light. See Notes Below As seen in the red, orange, yellow, green, blue, indigo, and violet colors of the Rainbow in the sky, When water droplets acting like countless prisms break up white sunlight!
Now this electromagnetic spectrum also contains the ultra violet and infra red spectrum which our eyes cannot see. But this entire electromagnetic spectrum contains Photons, which are discreet packets of zero mass less energy.
Torque and angular momentum | Physics | Science | Khan Academy
In a vacuum light photons travel atmiles for second, which Einstein declared as the cosmic speed limit, and as an universal constant. When a photon strikes the eye, it is turned into electrical energy that is transmitted to the brain to form an image which we call sight.
But Infrared, Microwave, Radio waves, with larger wave lengths are less energetic than the Visible spectrum of light. In his Special Theory of Relativity ofhe stated that nothing can move faster than speed of light which ismiles per second.
This speed of light always remains the same, irrespective of its source and frame of reference. But if the speed of light is reached, mass of an object would become infinite! Since photons, the quantum particles that make up light have a zero mass, they move at the speed of light.
But to become a time traveler shall always remain our cherished desire and dream! Only mass less particles like the photon can travel at light speed, photons experience no time, they do not age. Objects with mass cannot reach the speed of light since in that case its mass will become infinite.
A simple pendulum and circular motion | thecuriousastronomer
Also, one cannot see the fourth dimension because of Lorenz Contraction, which is also related to stopping of time, for at the speed of light an object will shrink to zero length!
Also, particles interact with the Higgs' Field present all around to pick up mass, excepting photons which do not interact with this Higgs' Field. But to his surprise he finds, his twin brother on Earth who was left behind, has reached the ripe age of 65!
Limitations of Special Theory of Relativity: It was confined to non-accelerating bodies only, and after ten years of deliberation, Einstein added gravitational force field, space-time curvature, and acceleration, - To formulate his General Theory of Relativity with satisfaction.
Isaac Newton during the 17th Century spoke about 'absolute time' and 'absolute space', accordance to the understanding of science of his Classical Age. Space was the arena where the drama of the universe was played out, and this arena was passive, eternal, and unchanging no doubt.Deriving formula for centripetal acceleration from angular velocity - AP Physics 1 - Khan Academy
Time too was absolute with an independent existence, and continued to beat independently like the heart beat of Space! Force-velocity relationship on a cycle ergometer and knee-extensor strength indices. Canadian Journal of Applied Physiology, 27 3 Effects of velocity of isokinetic training on strength, power, and quadriceps muscle fibre characteristics.
The effects of eccentric and concentric training at different velocities on muscle hypertrophy. European Journal of Applied Physiology, 89 6 Muscular force at different speeds of shortening.
The Journal of Physiology, 85 3 A comparison of the kinematics, kinetics and muscle activity between pneumatic and free weight resistance. European Journal of Applied Physiology, 6 Journal of Applied Biomechanics. Interdependence of torque, joint angle, angular velocity and muscle action during human multi-joint leg extension. Muscle fascicle shortening behaviour of vastus lateralis during a maximal force—velocity test.
European Journal of Applied Physiology, The heat of shortening and the dynamic constants of muscle. Proceedings of the Royal Society of London B: Biological Sciences, Role of concentric force in limiting improvement in muscular strength. Journal of Applied Physiology, 68 2 Effects of load and contraction velocity during three-week biceps curls training on isometric and isokinetic performance.
International Journal of Sports Medicine. Comparison of treadmill and cycle ergometer measurements of force-velocity relationships and power output. International Journal of Sports Medicine, 20 3 Effect of countermovement on power—force—velocity profile. European Journal of Applied Physiology, 11 Effectiveness of an individualized training based on force-velocity profiling during jumping. Frontiers in Physiology, 7, Training effect of different loads on the force-velocity relationship and mechanical power output in human muscle.
Scandinavian Journal of Sports Science, 5 2 Specificity of speed of exercise. Physical Therapy, 50 12 Direct measurement of power during one single sprint on treadmill.
Journal of Biomechanics, 43 10 Effects of maximal effort strength training with different loads on dynamic strength, cross-sectional area, load-power and load-velocity relationships. Age-and sex-related differences in force-velocity characteristics of upper and lower limbs of competitive adolescent swimmers. Journal of Human Kinetics, 32,