Recent content by whateverhello

Uhhh no? It's the impulse of the external forces.

Ahhhhh, ok. So this is where whether a force is impulsive or non-impulsive comes into play right? Follow-up question, so I know weight and spring forces are non-impulsive, but what about normal forces? For example if the block were pushed up against a wall so that it won't move no matter what...

Can someone elaborate on what he means, thanks. Judging from his reply, I must be missing something very basic here. This impulse stuff in general is giving me problems.

For example, consider a bullet (moving horizontally) that impacts a block (at rest) on an incline. From what I know, momentum1 + impulse = momentum2 I have the solution to the problem, and it says (for the impact), (mass of bullet)(speed of bullet) + 0 = (mass of bullet+block)(speed of...