Recent content by hgfhh123

Homework Statement I am a little confused about the concept of tension as it relates to pulleys. I am studying torque right now, and it says in the textbook that the tension in the rope around a pulley produces a torque that causes the pulley to turn. I don't fully understand this. I thought...

Homework Statement Could you please clarify the confusion I have about potential energy? Consider an object being raised from the Earth's surface upwards at a constant velocity. Is the potential energy increasing while it is moving upwards at a constant velocity?Homework Equations The Attempt...

Look at each motion separately. First of all, what is the x component of the velocity relative to the stationary observer, from your equation? Then, if the observer is moving with 20√2 m/s, what is the x component relative to him? Do the same for the y component. Think about what that graph is...

Homework Statement When constructing an Epsilon Delta proof, why do we need to make a stipulation? For example, in most proofs for limits of quadratic functions, it is stipulated, for example, that δ≤1. Why is this needed anyway? This is my thought process for a quadratic: Prove that lim(x...