Recent content by UnPetitGarcon

Thanks for reply! Got it!

Velocity is a vector with magnitude and direction. The vertical and the horizontal velocity are its components in x and y direction. To find out its angle relative to the horizontal, just divide the vertical with the horizontal and take the inverse tangent of it. Your answer is correct.

So there is a textbook physics question in which it asks us to calculate the acceleration of pulley B(which is massless). This exact question was posted and asked previously in this thread. However, it didn't discuss my doubt. To be exact, the question I have troubles with is (b)...

Got it! So Diagram 1 is the correct one because it makes the washer's acceleration less compared to the situation without friction. Thank you very much.

Thanks for reply. Both the crate and the washer slide down the x-direction. But how does it related to the question?

A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate. The crate slides down a long ramp that is inclined at an angle of 37° above the horizontal. The crate has mass 180 kg. You are sitting inside the crate(with a flashlight); your mass...