Recent content by keithcuda

Homework Statement A rectangular barge floats in freshwater. When a 400 kg block is loaded on the 5 m long by 2 m wide barge, the barge sinks a few centimeters deeper. How much deeper does the barge lower? Homework Equations Archimedes' principle This is where I am stuck. My textbook doesn't...

Sorry it took me a little while to get back, been working. I don't get weekends off very much :H The ball was thrown at a 45 degree angle. So it would also fall at a 45 degree angle.

It makes much more sense when I solve for "r" the proper way... :wThanks for the help Cheers Keith

good question... It's been a long day here at the power plant. I always tend to get confused when i try to solve for certain things. i was wanting to solve for "r" by multiplying both sides by 10. so now i am getting; 30rad/s = 10m/s / r r=10/30 r=.33 so that is just a radius. The diameter...

Homework Statement A bicycle tire rotates at 30 radians/s. If the bicyclist travels at 10 m/s, what is the diameter of the tire? Homework Equations I found; for angular speed, w=v/r and for linear speed; v=rw where v=m/s and w=radians/s So if i am thinking correctly, i already know my angular...

OH boy! Ummm...:))

Sorry I wasn't as clear earlier. It is hard for me to figure out what exactly I need to find and when. I found an example to my problem on Khanacademy.org and just watched it a few times and then used what i gained from the video to solve my problem. I was wanting to double check my approach and...

Roy Hobbs ;)

Here is my image and drawing with all of the units shown.. Sorry for not including them earlier. https://www.physicsforums.com/attachments/77770

Homework Statement A ball is thrown at 22 m/s at 45 degrees to the horizontal. A 5 foot tall fence is located 100 meters away. Does the ball make it over the fence? Homework Equations The Attempt at a Solution

Homework Statement A rock thrown horizontally from a bridge hits the water below 30 meters away in the horizontal direction. If the rock was in the air for 2 seconds, how tall is the bridge? Homework Equations d=.5gt2The Attempt at a Solution I think I am going about this the right way. Just...

Thank you for the help. I greatly appreciate it :)

OK, so then I know that t=3, and I(impulse)=20, If F is unknown then F=I/T= 6.66N