When two bodies collide elastically, then
When two bodies collide elastically, then
Kinetic energy of the system alone is conserved
Only momentum is conserved
Both energy and momentum are conserved
Neither energy nor momentum is conserved
When two bodies collide elastically, then
In collisions in absence of any external force the momentum is conserved.
As the collision is elastic so there will not be any deformation in the shapes of the bodies so there will not be any
loss in energy so the energy will remain constant.
Other Language