If the momentum of one object changes in a system that is subject to no net external force, what else must happen?
a. The momenta of the other objects in that system change in the same way.
b. The momenta of the other objects in that system change to cancel out the first change.
c. The momenta of the other objects in that system are not necessarily affected.
d. The momenta of the other objects in that system are necessarily not affected.
e. Collisions with other objects will change its momentum back.
b
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T2 = kR3 is known as ______________
Fill in the blank(s) with correct word