A block of mass 5 kg rests on a 30° inclined plane. The surface
is rough....
A block of mass 5 kg rests on a 30° inclined plane. The surface
is rough. The coefficient of friction between the surface and the
block is 0.5. Find the frictional force exerted by the plane on the
block. (N)
A block of mass m1 = 6 kg on a rough 30°-inclined plane is
connected to a 4-kg mass (m2) by a string of negligible mass
passing over a pulley shaped like a ring. The 2-kg pulley has
radius 20 cm and rotates about its symmetry axis of rotation. The
string causes the blocks and the pulley to rotate without slipping
and without friction. The 6-kg block (m1) on the 30°slope is
initially pressed against a spring near the bottom...
A block of mass m2 = 15 kg on a rough 30°-inclined plane is
connected to a 5-kg mass (m1) by a string of negligible mass
passing over a pulley that is shaped like a disk. The 2-kg pulley
has radius 15 cm and rotates about its symmetry axis of rotation.
The string does not slip on the pulley and causes the pulley to
rotate about a fixed horizontal axle through its center of mass.
When this system is released...
A crate of mass 100.0 kg rests on a rough surface inclined at an
angle of 37.0° with the horizontal. A massless rope to which a
force can be applied parallel to the surface is attached to the
crate and leads to the top of the incline. In its present state,
the crate is just ready to slip and start to move down the plane.
The coefficient of friction is 80% of that for the static case
a. What is the...
A 4.00-kg block rests on an inclined plane that has an
inclination angle of 31.3o. A string attached to this block, goes
uphill and over a frictionless pulley, and then is attached to a
hanging block of mass M. The inclined plane has coefficients of
friction μs = 0.22 and μk = 0.13.
Draw a real world picture of this scenario.
Draw the free body diagrams for each of the blocks.
Show how to determine the mass M that will...
A block of mass m = 3.5 kg is on an inclined plane with
a coefficient of friction μ1 = 0.23, at an
initial height h = 0.46 m above the ground. The plane is
inclined at an angle θ = 42°. The block is then compressed
against a spring a distance Δx = 0.11 m from its
equilibrium point (the spring has a spring constant of
k1 = 39 N/m) and released. At the bottom of the
inclined plane...
A block with a mass of m = 33 kg rests on a frictionless surface
and is subject to two forces acting on it. The first force is
directed in the negative x-direction with a magnitude of F1 = 11.5
N. The second has a magnitude of F2 = 23 N and acts on the body at
an angle θ = 22° measured from horizontal, as shown. write an
expression for the component of net force, Fnet,x, in the x...
A 1.50-kg block is on a frictionless, 30 degrees inclined plane.
The block is attached to a spring (k = 40.0N/m ) that is
fixed to a wall at the bottom of the incline. A light string
attached to the block runs over a frictionless pulley to a 60.0-g
suspended mass. The suspended mass is given an initial downward
speed of 1.40m/s. How far does it drop before coming to rest?
(Assume the spring is unlimited in how far it...
A block of mass m1=6.6 kg rests on a frictionless horizontal
surface. A second block of mass m2=9.4 kg hangs from an ideal cord
of negligible mass, which runs over an ideal pulley and then is
connected to the side of the first block. The blocks are released
from rest. How far will block 1 move during the 1.1 second
interval?
A block of mass m1 = 3.54 kg on a
frictionless plane inclined at angle θ = 26.5° is connected by a
cord over a massless, frictionless pulley to a second block of mass
m2 = 2.41 kg hanging vertically (see the
figure). (a) What is the acceleration of the
hanging block (choose the positive direction down)?
(b) What is the tension in the cord?