Problem
In a laboratory experiment, you wish to determine the initial speed of a dart just after it leaves a dart gun. The dart, of mass m, is fired with the gun very close to a wooden block of mass M0 which hangs from a cord of length l and negligible mass, as shown above. Assume the size of...
Here's what I have so far:
dx/dt=1.5t^2+2
dv/dt=3t
a) just plug in 0 for t to find a?
b)
i. 1/2(100kg)(velocity found in a)^2
ii. (100kg)*(3t)
iii. I don't understand. I have to find net work in c, so how can I use that to find delta KE to ultimately find power?
c) Don't understand.
d) once I...
[SOLVED] 2003 AP physics mechanics problem
Can someone help me figure out the first mechanics problem on the 2003 AP Physics C exam? I'm doing this for review. See post #3 for what I have so far.
http://www.collegeboard.com/prod_downloads/ap/students/physics/physics_c_m_frq_03.pdf"
or...