Recent content by usahockey7

Perfect, thanks for helping and explaining this rather than just giving me an answer.

okay so for part a, convert light years into meters and that will be the rest length or the distance observed by someone from Earth and then I need to solve for the relativistic length of the distance observed from someone in the spaceship? And then for part b, use the rest length I...

A star is 40 light years from Earth. (a) How far would you measure this distance to be if you traveled it in a spaceship moving at 1.00X10^8 m/s (b) How long would the trip last (for you)? Can someone please help me out with this question and what equations I should use to solve this...

Perfect, that made sense, so how would I go about solving for the initial velocity needed for the ball to travel 40m? This is where I'm stuck. Obviously without air resistance I could use the range equation, is there a way to substitute the equation for air resistance into the range equation to...

I think he wants us to use the drag equation, but I've heard it's not a linear function? And it's difficult to work with, without using a program? The easiest way to solve it I guess is to use a program but I have no knowledge of programming, I've never taken a programming course throughout high...

I'm currently in grade 12, so I've only taken pre calc and advanced functions, though I'm going to Waterloo for mech engineering in the fall.

I found out today and the above suggestions about programming yourself is the way to go, I'm in a group but the other members aren't doing anything so it looks like I'm on my own, and every group was assigned with a "programmer" however, it's evident that my group obviously has no programming...

If we ignore air resistance. I would find the initial speed of the ball using one of the kinematic equations for the ball to travel 40m, then use that initial speed to find the object's kinetic energy at the moment it leaves the slingshot, then using the efficiency of the spring or slingshot in...

Yeah the k value in this case is the spring constant of the slingshot

The work done by the air on the ball, which will be negative work because it's in the opposite direction of the ball's motion? My teacher told us to calculate the air resistance and use an fbd or something and calculate the new acceleration and velocity for the ball during each second of flight...

I'm taking grade 12 physics and I've been given a lab that involves a slingshot. A baseball will be shot using a slingshot and is to go 40m. I have to perform calculations to find out the initial velocity it needs to travel a distance of 40m, however, I have to take air resistance into account...