JStephen, got the same answer as you using energy methods. I'm thinking it's a faulty solution presented in the book. Wonder how many others are like this?
bvanhiel, the 1 second was used calculate acceleration, as used in the author's solution: (mass of balloon x acceleration) = (spring...
Here is the exact problem description:
In an engineering competition, students try to launch large water balloons over a 100 yard range using catapults and slingshots. The balloons must be launched with a zero degree start angle from the roof of the engineering building, 50 feet above the...
Hi folks,
New to the forum, I’m getting ready to take the mechanical PE exam this Friday. I’ve been studying for a better part of the year and hope for some positive results.
I’ve come across a sample problem where I don’t agree with the solution. Perhaps someone can set me straight. By...
