Recent content by Gustason

Projectile Motion "best angles" Homework Statement Collect sufficient and relevant empirical data to support the claim that for any initial velocity V there is a "best angle" theta 0ba that yields the largest horizontal displacement (change in x). Support the claim that there is a "best angle"...

Ok thanks that equation really helps. I've gotten the first two answers and now the last thing I have left is C. I know how to get C (it is 114.97 meters) thanks to some help I got from a friend. But he really just gave me the answer, I was wondering if you guys could explain the equation he...

Hmm I tried using your method kmiller and I got the answer incorrect. I took the 2.857 seconds and added them to the 19.38 (95/4.9) seconds that the rock would fall during the 95m portion and I came up with 22.245 seconds.

Homework Statement A stone is thrown vertically upward with a speed of 14.0 m/s from the edge of a cliff 95.0 m high (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? Homework Equations Well I'm...

Well I don't have the book so I don't know. Like I said in my post, this is all submitted online, I'm only told if my answer was accepted or if it wasn't. I don't know what the answer key says.

Homework Statement A car traveling at 90 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.86 m. What was the average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g = 9.81 m/s2...