Which one of the following statements about linear momentum is true (p = magnitude of the momentum, m = mass, and v= speed)?

(a) When the magnitude p of the momentum is defined as

the linear momentum of an isolated system is conserved only if the speeds of the various parts of the system are very high.

(b) When the magnitude p of the momentum is defined as p = mv, the linear momentum of an isolated system is conserved only if the speeds of the various parts of the system are very high.

(c) When the magnitude p of the momentum is defined as

the linear momentum of an isolated system is conserved no matter what the speeds of the various parts of the system are.

(d) When the magnitude p of the momentum is defined as p = mv, the linear momentum of an isolated system is conserved no matter what the speeds of the various parts of the system are.

Transcribed Image Text:

P= mv √I-v²c² D