lab 7 the ballistic pendulum
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kinetic energy
KE=1/2mv^2
Conservation of mechanical en
applies only when the non-conservative forces do no net work
conservation of linear momentum
applies only when there is no net external forces
non-conservative forces
constraint forces (tension,normal force, and static friction), dissipative forces (kinetic friction and collisional forces)
if a completely elastic collision takes place, during the collision, what is conserved?
mechanical energy, momentum, and energy
if an inelastic collision takes place, during the collision, what is conserved?
momentum and energy
gravitational pote
GPE=mgh
