Acceleration Due to Gravity

The normal values for gravitational acceleration used in physics and engineering are: g = 9.8066 m/s2 g = 32.1740 ft/s2 Poles and Equator Because g varies from the poles to the equator, here are the extreme values: North and South Poles: g = 9.832 m/s2 = 32.26 ft/s2. Equator: g = 9.780 m/s2 = 32.09 […]

The Work Energy Principle Explained

Since energy can be neither created nor destroyed, external work performed on a system changes the system’s total energy. $latex W = {\Delta}E = E_2 – E_1$ The work energy principle introduces some simplifications into many mechanical problems, such as: You don’t need to know the acceleration of a body to calculate the work performed […]