The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called
Options
A. Newton's first law of motion
B. Newton's second law of motion
C. principle of conservation of energy
D. principle of conservation of momentum
Correct Answer
principle of conservation of momentum
More questions
1. The discharge is __________ at critical pressure.