I found the answer.
assume energy conserved.
potential energy = kinectic energy
mgh = 0.5mv^2
gh = 0.5v^2
(9.81)(10) = 0.5v^2
v=14m/s
The problem is I asked him the speed of a falling object free falling is 9.81 m/s but these are not free falling so I didn't know where I could get a second...
That is all that is given. I even asked my instructor how can I solve for a problem when all I know is one variable. He went on to say basically PE=x at the top of the hill and KE=0 therefore solve for PE and you will find your answer. But I still don't know how I am to solve it, with only one...
[SOLVED] Potential/Kinetic Energy Problem need help ASAP
A small sports car and a pickup truck start coasting down a 10.0 m hill together, side by side. Assuming no friction, what is the velocity of each vehicle at the bottom of the hill? Submit answer in m/s; sports car, then truck.
I...
So if the Astronaut has a Force of 400 Newton-seconds and he fires a 100 N rocket then the answer will be 4 s?
If that is the correct answer I'm going to be pissed that is the solution I came up with when I first began working this problem. But, thought that it was to easy and couldn't be right.
[SOLVED] 200kg Astronaut, 2.0 m/s, 100.0 N rocket ?
A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s toward an orbiting spacecraft . How long will the astronaut need to fire a 100.0 N rocket backpack to stop the motion relative to the spacecraft ? Give your answer in s...