Homework Statement
Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube has cross-sectional area A1 of 9.4 cm2, and the right arm has a cross-sectional area A2 of 4.50 cm2. One hundred grams of water are then poured into the right arm as shown in Figure b.
(b) Given...
Homework Statement
The potential energy function for a system of particles is given by
U(x) = −4x^3 + 3x^2 + 8x,
where x is the position of one particle in the system.
(a) Determine the force Fx on the particle as a function of x.
Homework Equations
du/dx[U(x)] = Fx
The Attempt at a Solution...
k, going to solve for t(ramp) using kinematic first.
v(f) = v(o)+at
v(o) = 0
2.42 = 7.51t
t = 0.3222
same, find t for the fall
y = v(o)t-1/2(g)(t^2)
-2 = -1.85t-4.9t^2
4.9t^2+1.85t-2 = 0
t = 0.4774
t(tot) = 0.3222+0.4774 = 0.7996 sec
how does that look?
part c
v=d/t is for constant velocity?
this is what I am thinking, after I've found t from the other equation
x=v(o)t+(1/2)at^2
a=0
x=v(o)(m/s)t(s)
x=x(m)part d
I used 7.51sin50 to get that answer. I'm not sure how to approach this.
Hm alright, so the range equation I used was for symmetric projectile motion. I get what you are saying, I seem to mess up once I start using anything beyond the basics.
Okay for C I found the components for final ramp velocity to be 1.56i - 1.85j
v=d/t
Vf=d/t
find t
y=V(o)t-g/2(t^2)
for t? I...
Homework Statement
A block of mass m = 2.00 kg is released from rest at h = 0.300 m above the surface of a table, at the top of a θ = 50.0° incline as shown in the figure below. The frictionless incline is fixed on a table of height H = 2.00 m.
a. Find a on the incline
a=7.51 :)
b. Find V(f)...