PROJECTILE MOTION (example lab Report) • • • • • • • A good projectile motion can often be obtained with the assumption that air resistance is absent. In the absent of the air resistance the moving object does not slow down in the horizontal (x) direction. x component of the acceleration is ax =0 The velocity of x component remains the same as its initial value. In the vertical (y) direction the projectile experiences the effect of gravity. The acceleration due to the gravity. Projectile motion means that ax= 0 and ay equal to the acceleration due to gravity (9.80 m/s). The range is the horizontal distance traveled between launching and landing, assuming the projectile returns to the same vertical level at which it launch. Total Mechanical Energy • • • Total mechanical energy is the sum of the kinetic energy and potential energy, and it obeys the principle of conservation of mechanical energy. This principle in situations where there is only translation motion, as when a sled slides down a frictionless hill. Total mechanical energy, Ef at the bottom (hf = 0) is the same as the total mechanical energy E0 at the top. (h = h0, v0 = 0,ω0 = 0 ) ½mvf2 + Iωf 2 + mghf = ½mv02 + ½Iω02 + mgh0 ½mvf2 + ½Iωf2 = mgh0 • Since each cylinder rolls without slipping the final rotational speed, ωf and the final translational speed, vf of its center of mass (ωf = v f /r ) where r is the radius of the cylinder.
About Me
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- I’ m Suhaiza Mat Said. I live at Kg. Banggol Nyior, Gemuruh, Kuala Terengganu. I’m master student second semester in Physics Education at University Pendidikan Sultan Idris, Tanjong Malim, Perak. There are many reasons why I have chosen teacher as my carrier. One of the reasons is as a teacher I able to impact much knowledge to my pupils and help in educating them. I have always loved learning and gathering knowledge.
