Indicate true or false in each of the following statements: True False An explod
ID: 1335415 • Letter: I
Question
Indicate true or false in each of the following statements:
True False An exploding rocket does not change its momentum because of the explosion.
True False A net external force can change the path of the center of mass of an object.
True False The momentum of a ball colliding with a wall changes by twice the momentum the ball had in the direction of the wall.
True False Newtons's first law can be expressed as: force is the rate of change of momentum.
True False The linear momentum of an isolated system is constant
Explanation / Answer
(a) True since explosion is an internal action. But only external forces change the momentum of the body
(b) True. Because external force change the accelaration of the centre of the mass of the body
(c) False
(d) False. It is Newton`s second law
(e) True. From conservation of linear momentum, linear momentum of the body is constant when there is no external force