Beginner Physics: Learn the Basics Now!

AI Thread Summary
The discussion centers on understanding kinematic equations in physics, specifically regarding distance, initial speed, and acceleration. A participant expresses confusion about distinguishing between initial and final velocity, particularly when "rest" is not mentioned. Clarification is provided that if the initial speed is stated as 6 m/s, then that is the initial velocity. The conversation highlights the importance of correctly identifying terms in kinematic equations for solving physics problems. Overall, the thread emphasizes the need for clarity in understanding basic physics concepts.
Numnum
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Done.
 
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So you have the distance, initial speed and acceleration.

Which kinematic equation has all these terms in it?
 
Haha, actually I think I was confused by the velocity. I didn't know whether it was initial or final. I just got the answer. Thank you! Btw, is it initial if "rest" is not stated in the equation?
 
Numnum said:
Haha, actually I think I was confused by the velocity. I didn't know whether it was initial or final. I just got the answer. Thank you! Btw, is it initial if "rest" is not stated in the equation?

well it said from 6m/s, so initial velocity = 6
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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