Question

In the figure system, the table has friction (μk = 0.50). The masses are: m1 = 10.0 kg, m2 = 8.0 kg. The wire and pulley are ideal (negligible masses; no friction pulley shaft). (a) Calculate the acceleration of the system when the block of mass m2 is released. (b) How long does it take for bodies to move 50 cm, starting from rest?

Answer #1

In the figure system, the table has friction (μk = 0.50). The
masses are: m1 = 10.0 kg, m2 = 8.0 kg. The wire and pulley are
ideal (negligible masses; no friction pulley shaft). (a) Calculate
the acceleration of the system when the block of mass m2 is
released. (b) How long does it take for bodies to move 50 cm,
starting from rest?

Objects with masses m1 = 12.0 kg and
m2 = 8.0 kg are connected by a light string
that passes over a frictionless pulley as in the figure below. If,
when the system starts from rest, m2 falls 1.00
m in 1.48 s, determine the coefficient of kinetic friction between
m1 and the table.
Express the friction force in terms of the coefficient of kinetic
friction. Obtain an expression for the acceleration in terms of the
masses and the...

Two masses m1 = 5 kg and m2 = 3 kg are connected by a
light rope dropped over a pulley as shown in the figure
a) Neglecting friction, what is the acceleration of these
masses?
b) What is the tension of the rope?
c) What will be the acceleration if the coefficient of friction for
the mass m1 is μk = 0.4?

Two blocks with masses m1 = 1.10 kg and m2 = 3.50 kg are
connected by a massless string. They are released from rest. The
coefficent of kinetic friction between the upper block and the
surface is 0.440. Assume that the pulley has a negligible mass and
is frictionless, and calculate the speed of the blocks after they
have moved a distance 68.0 cm.

A block with mass m1 hangs from a rope that is extended over an
ideal pulley and attached to a second block with mass m2 that sits
on a ledge. The second block is also connected to a third block
with mass m3 by a second rope that hangs over a second ideal pulley
as shown in the figure below. If the friction between the ledge and
the second block is negligible, m1 = 2.60 kg, m2 = 4.00 kg,...

Two blocks with masses M1 and M2 are connected by a massless
string that passes over a massless pulley as shown.
M1 has a mass of 2.25 kg and is on an incline of θ1=46.5∘ with
coefficient of kinetic friction μ1=0.205.
M2 has a mass of 6.05 kg and is on an incline of θ2=33.5∘ with
coefficient of kinetic friction μ2=0.105.
The two‑block system is in motion with the block of mass M2
sliding down the ramp.
Find the magnitude...

In the figure below, the hanging object has a mass of
m1 = 0.370 kg; the sliding block has a mass of
m2 = 0.900 kg; and the pulley is a hollow
cylinder with a mass of M = 0.350 kg, an inner radius of
R1 = 0.020 0 m, and an outer radius of
R2 = 0.030 0 m. Assume the mass of the spokes
is negligible. The coefficient of kinetic friction between the
block and the horizontal surface...

A m1 = 16.6 kg mass and a
m2 = 10.1 kg mass are suspended by a pulley
that has a radius of R = 12.4 cm and a mass of M
= 2.60 kg, as seen in the figure below. The cord has a negligible
mass and causes the pulley to rotate without slipping. The pulley
rotates without friction. The masses start from rest d =
3.30 m apart. Treating the pulley as a uniform disk, determine the
speeds...

Constants
(Figure 1)Block 1, of mass m1 = 0.600 kg , is connected
over an ideal (massless and frictionless) pulley to block 2, of
mass m2, as shown. For an angle of ? = 30.0 ? and
a coefficient of kinetic friction between block 2 and the plane of
? = 0.400, an acceleration of magnitude a = 0.400
m/s2 is observed for block 2.
Part A
Find the mass of block 2, m2.
Express your answer numerically in kilograms.

Consider the system shown in the figure below with m1 = 23.0 kg,
m2 = 12.8 kg, R = 0.130 m, and the mass of the pulley M = 5.00 kg.
Object m2 is resting on the floor, and object m1 is 4.90 m above
the floor when it is released from rest. The pulley axis is
frictionless. The cord is light, does not stretch, and does not
slip on the pulley. (a) Calculate the time interval required for m1...

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