Homework Statement
The wave function for a traveling wave on a taut string is (in SI units) the following equation.
y(x, t) = (0.12 m)sin(6πt - 3πx + π/4)
What is the maximum magnitude of the transverse speed of the string.
I don't quite understand the question.
Does it mean the speed...
so that means i need to find the angle that formed by the 4i+3j right?
now i have another question.
I found that the angle of the 4i+3j would be 37 degree.
and for x i will add that to the 30 degree right. then what about for the y?
do i need to add the different angle? should it be respect to...
PHYSIC momentum QUESTION~
Homework Statement
A billiard ball moving with velocity 4i+3j m/s strikes a stationary ball of the same mass. After the collision the struck ball moves with a speed of 4m/s at an angle of 30 degree with respect to the line of original motion of the striking ball...
How do I get a formula that finds the initial velocity with height in it??
How do I get a formula that finds the initial velocity with height in it??
i was doing a inclined plane problem with is deal with 2 steel balls' collision~
could somebody help me to derivate that formula?
can anyone help me on the second question?
i found the part a is
1400 * 0.1 m = 140N,
part b is 6.6m, part c is 14J, part d is
but i don't know how to do the last two part.... help please!!
is this correct?
w=mgcos60 x 6.6m = 6.468 J..
i don't know which distance should i use~
0.1m or 6.6m...
A projectile is launched from the edge of a 100m high vertical cliff at an angle of 30 degree below the horizontal. The projectile hits the ground at a distance of 50m from the bottom of the cliff.
-Find the initial and final velocities of the projectile(magnitudes and directions).
-Find total...
a general physic q please help!!
A bob rotates clockwise in a vertical circle at the end of a 1 m long rope. In the pint, where the rope makes the horizontal to the right, the acceleration of the bob is (-2i+3j)m/s^2. At that instant
-sketch the acceleration vector and find its magnitude...