Which of the following statements is/are correct?
(1) Conservation of momentum is a result of conservation of energy
(2) The Newton's first law of motion can proof the conservation of momentum
(3) When there is an external force, momentum will change accordingly.
A. (1) only
B. (2) only
C. (3) only
D (2) and (3)
please explain..........
f.4 momentum
2007-08-17 12:54 am
回答 (2)
2007-08-17 1:00 am
✔ 最佳答案
The answer is C.1) The momentum conserve but energy do not for those inelastic collisions.
2) Newton 1st law tell only force will change momentum and momentum keep constant if there is no force.
2007-08-17 12:58 am
A+B-C/D=B
收錄日期: 2021-04-13 12:53:14
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