Recent content by to819

Solved for it correctly thanks to the help of both of you. Thank you both.

Ah, thank you for that. That number was me mistyping 0.0870. Should I convert the angular speed to radians per second before I solve for angular acceleration or leave it as is?

Homework Statement A child exerts a tangential 42.4 N force on the rim of a disk-shaped merry-go-round with a radius of 2.20 m. If the merry-go-round starts at rest and acquires an angular speed of 0.0870 rev/s in 4.50 s, what is its mass? Homework Equations t=I\alpha I=.5mr2 The Attempt...

In preparation for my upcoming first exam I was doing all of the suggested problems throughout the chapters. Everything was fine until this problem: Homework Statement An astronaut on the planet Zircon tosses a rock horizontally with a speed of 6.95m/s. The rock falls through a vertical...

Homework Statement A cork shoots out of a champagne bottle at an angle of 38.0 degrees above the horizontal. If the cork travels a horizontal distance of 1.4m in 1.15 seconds what was the initial speed? Homework Equations x(t)=x2+vit+.5at2 The Attempt at a Solution 1.4=0+1.15x...

Hmm, I've looked through all the related threads, however, in all instances the problem is similar a solution is available but documentation showing how the solution is reached is unavailable. I'm much more interested in the necessary steps to solve this problem than the actual solution.

That's embarrassing, can't believe I left that out. The question is now included.

Introductory Vector Equation Illustrated by a Moving River -- Picture Included Homework Statement A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance (from A to C) is 100 , the distance (from C to B) is 75 , and the speed of the current in the...