physics sucks but PLEASE help

This page lists questions and answers that were posted by visitors named physics sucks but PLEASE help.

Questions

The following questions were asked by visitors named physics sucks but PLEASE help.

I need to plot a projectile motion graph...I am confused..my numbers don't work at all. The equations I have are the one for the dx component and the dy component. I did the dx values with this equation dx=(vcostheta)(time) the dy should be this: dy=(vsin...

Ya so honestly...I cant figure out how to graph this graph. OK so Willy throws a coin from the top of a cliff. If he throws it with an initial velocity of 22 m.s in the horizontal direction, plot the trajectory of the coin at intervals of 0.10s. How can t...

Answers

The following answers were posted by visitors named physics sucks but PLEASE help.

Yes, you are right the letters x & y are subscripts...so bascially, I have calculated the dx components properly...but should I make up the positive direction and then use the negative acceleration? I tried doing that a way we did in class by making down...

I don't fully understand, but I sort of do..ha. I made up the positive direction so that the equation became this: delta dy=(vsinthetat)(time)+(-1/2 9.81)(time)^2 this equation worked well and I had a proper projectile graph! :)

As well, when you are labelling the axis, Delta d x is the horizontal displacement and delta dy is the vertical displacement or both in metres for the units? Or whatever unit is given? Since it is displacement? Thanks, I really appreciate this!

Thats what I thought, so the question is in meters, and everything else has meters in it as well, so are the axis labelled with (m)....as well if I have to graph something falling of a cliff..how do I manipulate the equations to do so... dx=(v1x * time) d...

Ya so honestly...I cant figure out how to graph this graph. OK so Willy throws a coin from the top of a cliff. If he throws it with an initial velocity of 22 m.s in the horizontal direction, plot the trajectory of the coin at intervals of 0.10s. How can t...