Question

How is the momentum of particle and change if the force acting on block is equals to zero

Answer 1

Answer:

• Relation to force In differential form, this is Newton's second law;

• the rate of change of the momentum of a particle is equal to the instantaneous force F acting on it, hence the net force is equal to the mass of the particle times its acceleration.

Answer 2

Answer:

Here's a slightly different but equivalent way to think about it.

Here's a slightly different but equivalent way to think about it.Forces describe interactions between two objects. If two objects are interacting, they exert forces on each other. If two objects are not interacting, they do not exert forces on each other. Thus, an object doesn't "carry around" a force with it. A force is not a property of an object, just as dmckee explains. Instead, we describe interactions between two objects using the more-abstract concept of force.

Here's a slightly different but equivalent way to think about it.Forces describe interactions between two objects. If two objects are interacting, they exert forces on each other. If two objects are not interacting, they do not exert forces on each other. Thus, an object doesn't "carry around" a force with it. A force is not a property of an object, just as dmckee explains. Instead, we describe interactions between two objects using the more-abstract concept of force.In your block-hits-other-block scenario, it's tempting to ask where did the force come from if colliding object had Fnet=0? But when forces are viewed as interactions, it becomes more apparent that the force didn't come from anywhere within one of the objects. There simply wasn't an interaction before they collided, so we wouldn't ascribe the existence of a force force.

Explanation:

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