Question

A box with a mass of 10 kg is pushed with a constant force of 40 N. The coefficient of friction for the box is .2. The box is 4 m from a spring that has a stiffness of K= 1000N/m. Determine the maximum velocity of the block and the distance the spring is compressed.

Answer #1

A block with a mass m = 2.12 kg is pushed into an ideal spring
whose spring constant is k = 3810 N/m. The spring is compressed x =
0.069 m and released. After losing contact with the spring, the
block slides a distance of d = 2.07 m across the floor before
coming to rest.
a) Write an expression for the coefficient of kinetic friction
between the block and the floor using the symbols given in the
problem statement...

An 8.5-kg block is pushed along a horizontal rough surface by a
40-N force inclined at 20° with the horizontal. The coefficient of
friction between the surface and block is 0.35. If the block has an
initial velocity of 3.6 m/s and the force does 200 J of work on the
block, find:
(a) The total distance moved by the block.
(b) The final velocity of the block.

A box with mass M=10 kg is on a table with coefficient of
friction μ=0.1. The box starts moving with velocity V=10 m/s toward
a spring with the spring which is fixed on a wall at the end of the
table and has a spring constant k=1 N/m. The box reaches the spring
after moving distance d=10 cm on the table.
a) Find the velocity u=? of the box when it reaches the
spring?
b) What is the maximum compression...

A 3.00 kg mass is pushed against a spring and released. If the
spring constant of the spring is 7500 N/m and the spring is
compressed 10.0 cm. (a) What is the energy stored in the compressed
spring? (b) What is the maximum speed ?0 of the mass? (c) The mass
then travels across a rough surface and then up a smooth ramp. The
speed at the beginning of the ramp is ?1 = 4.00 m/s. What is the
work...

0.2 kg mass gets pushed down against a vertical spring with
spring constant k=1000N/m. when the spring is compressed by 10 cm
the object is let go. what is the speed of the object the second
its let go from the spring. (i.e. the spring is at its equilibrium
length) answer in m/s

A box is pushed up an incline at a constant speed by a
horizontal force of 30 N. The angle of the incline is 15.4 degrees.
The box has a mass of 3.1 kg and moves a total distance of 2.96 m.
The coefficient of kinetic friction between the box and the ramp is
0.59.
What is the work done by the gravitational force during this
motion? J
What is the work done by the friction force during this motion?...

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 = 2.0 kg is dropped from height h = 40 cm onto
a spring of spring constant k = 1960 N/m (Fig.8-39 page 204).Find
the maximum distance the spring is compressed.

A box of mass m = 3 kg is pushed against a vertical
wall, with a force that gets weaker over time,
Fa = 10 - t N. After 10 seconds,
Fa remains 0 Newtons (the force does not become
negative). The coefficient of static friction ?s = 0.7
and ?k = 0.4

A block of mass ?=4.50 kg m=4.50 kg slides along a horizontal
table with velocity ? 0 =2.50 m/s v0=2.50 m/s . At ?=0 x=0 , it
hits a spring with spring constant ?=43.00 N/m k=43.00 N/m and it
also begins to experience a friction force. The coefficient of
friction is given by ?=0.300 μ=0.300 . How far has the spring
compressed by the time the block first momentarily comes to rest?
Assume the positive direction is to the right.

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