Mechanical energy is the sum of potential energy and kinetic energy present in the components of a mechanical system. It is the energy associated with the motion and position of an object.I think it is supposed to be mechanical energy. That is where energy is present in an object because of it's movement's.R. the sum of kinetic and potential energy present at the same time. Mechanical energy is the sum of potential energy and kinetic energy present in the components of a mechanical system. It is the energy associated with the motion and position of an object. I think it is supposed to be mechanical energy.
How to Do the Hip and Lower Back Stretch. 1  Begin in a forward lunge position with your right leg forward. Drop your left knee to the ground. 2  Place your right elbow on the inside of your right knee as pictured. 3  Press your right elbow gently into your right knee and twist your torso to the left.
Perform hamstring curls in a prone position -- lie on your stomach on a firm surface. Bend your right knee, bringing your heel as close as possible to your buttock. Hold for two to three seconds and lower back down. Repeat 10 times and work up to three sets of 10 on each leg. Progress this exercise and do hamstring curls in a standing position. Hold on to a stable surface for balance and bend your right knee, bringing your heel up to your buttock. Hold this position for two to three seconds, then lower back down. Repeat 10 times on each leg and work up to three sets.