Thanks and I believe I am still stuck, but I believe DTFTS is correct I can't see any other answer.
Could you tell me what I have incorrect? last 2? first 2?
Most of my mistakes in physics are due to manipulation of words.
Some time I feel that I have to memorize the question and the answer instead of understanding it.
English is not my first language, so those kind of questions always get me in trouble.
Do you know of any way where I can strength...
Homework Statement
Homework Equations
Read below
The Attempt at a Solution
A) D. As the mass of the students gets further away from the axis of rotation, the rate slows down (remember the skater with arms out).
B) T. No explanation currently...
C) ?
D) T. The students exert a force on...
I still don't get it? What formula should I because another guy said impulse = change in momentum = force (change in time)?
I'm extremely confused now
Edit:(0.0063)(26.6)(cos 14)-(0.0063...)
Same as 2(0.0063)(26.6)(cos14)
=0.3252043156 Kg*m/sForce = Impulse / time
=0.3252/0.039= 8.33846 N
Homework Statement
http://i.imgur.com/COAuag8.png
Homework Equations
Change of momentum and Force = impulse / time.
The Attempt at a Solution
I got 0.325204kg m/s for magnitude of the impulse
and 8.338572195N for average force exerted by the ball on the wall...
Just joined this website for math help like right now :)
Background info: I was sick for 2 years before going to university so my level in math is horrible; though I will try my best in all questions which I would ask.1. Simplify 2x^-3 + 9x^-7
Here's what I did
2/x^3 + 9/x^7
find common...