Question

A 1.8 kg block at rest on a table is attached to a spring of
spring constant 1.1 N/m that is parallel to the table top. The
spring is initially unstretched. A constant 27.9 N force is
applied, causing the spring to stretch.

Determine the speed of the block after it has moved 0.2 m from
equilibrium if

1. the tabletop is frictionless

2. the coefficient of kinetic friction is 0.24

Answer #1

A 2.90 kg block on a horizontal floor is attached to a
horizontal spring that is initially compressed 0.0340 m . The
spring has force constant 850 N/m . The coefficient of kinetic
friction between the floor and the block is 0.42 . The block and
spring are released from rest and the block slides along the
floor.
Part A
What is the speed of the block when it has moved a distance of
0.0190 m from its initial position?...

. A block of mass 2.00 kg is attached to a horizontal spring
with a force constant of 500 N/m. The spring is stretched 5.00 cm
from its equilibrium position and released from rest. Use
conservation of mechanical energy to determine the speed of the
block as it returns to equilibrium
(a) if the surface is frictionless
(b) if the coefficient of kinetic friction between the block and
the surface is 0.350

A block of mass m = 4.5 kg is attached to a spring with
spring constant k = 610 N/m. It is initially at rest on an
inclined plane that is at an angle of θ = 29° with respect
to the horizontal, and the coefficient of kinetic friction between
the block and the plane is μk = 0.13. In the
initial position, where the spring is compressed by a distance of
d = 0.19 m, the mass is at...

A block of mass m = 0.53 kg attached to a spring with force
constant 119 N/m is free to move on a frictionless, horizontal
surface as in the figure below. The block is released from rest
after the spring is stretched a distance A = 0.13 m. (Indicate the
direction with the sign of your answer. Assume that the positive
direction is to the right.)
The left end of a horizontal spring is attached to a vertical
wall, and...

A 1 kg block of wood is attached to a spring, of force constant
200 N/m, which is attached to an immovable support. The block rests
on a frictional surface with a coefficient of kinetic friction of
0.2. A 20 g bullet is fired into the block horizontally compressing
the spring a maximum distance of 15 cm. Find the original velocity
of the bullet before the collision.

A 28 kg block on a horizontal surface is attached to a
horizontal spring of spring constant k = 4.8 kN/m. The block is
pulled to the right so that the spring is stretched 7.2 cm beyond
its relaxed length, and the block is then released from rest. The
frictional force between the sliding block and the surface has a
magnitude of 37 N. (a) What is the kinetic energy of the block when
it has moved 1.6 cm from...

A 0.400kg0.400kg block is initially at rest on a
horizontal surface, and is attached to an initially unstreteched
spring with a force constant of 2.00N/m2.00N/m. The coefficient of
kinetic friction between the block and the surface is 0.4000.400. A
constant force of 2.30N2.30N to the right is applied to the
block.
(A) Draw a free body diagram showing all forces on the block as
it moves to the right.
Determine
(B) the initial Kinetic Energy of the block: J,
and
(C)...

A 0.400kg0.400kg block is initially at rest on a
horizontal surface, and is attached to an initially unstreteched
spring with a force constant of 2.00N/m2.00N/m. The coefficient of
kinetic friction between the block and the surface is 0.4000.400. A
constant force of 2.30N2.30N to the right is applied to the
block.
(A) Draw a free body diagram showing all forces on the block as
it moves to the right.
Determine
(B) the initial Kinetic Energy of the block: J,
and
(C)...

A 0.225 kg block attached to a light spring oscillates on a
frictionless, horizontal table. The oscillation amplitude is
A = 0.190 m
and the block moves at 3.50 m/s as it passes through equilibrium
at
x = 0.
(a) Find the spring constant, k (in N/m).
N/m
(b) Calculate the total energy (in J) of the block-spring
system.
J
(c) Find the block's speed (in m/s) when x = A/2
m/s.

You push a 3.2 kg block against a horizontal spring, compressing
the spring by 16 cm. Then you release the block, and the spring
sends it sliding across a tabletop. It stops 62 cm from where you
released it. The spring constant is 170 N/m. What is the
coefficient of kinetic friction between the block and the
table?

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