The discussion revolves around calculating the kinetic energy of a golf ball with a given mass and initial speed, as well as its speed at a specific height below its highest point. The subject area includes concepts of kinetic energy, gravitational potential energy, and the conservation of mechanical energy.
Participants are exploring various concepts related to energy conservation, with some providing equations and others questioning assumptions about energy states at different points in the ball's flight. Guidance has been offered regarding unit conversions and the relationship between kinetic and potential energy.
There is an emphasis on the need to convert mass from grams to kilograms for calculations, and participants are considering the implications of neglecting air resistance in their analysis.
No. Only the vertical component of velocity is zero at the highest point--it's still moving horizontally.eanderson said:wouldnt kinetic be 0 at the highest point because all the energy is potential?
Compare the initial energy (KE + PE) at the start with the energy (KE + PE) at the top. The ball loses KE as it gains PE.eanderson said:what do i do now?