Question

A horizontal spring with spring constant 250 N/m is compressed by 20 cm and then used to launch a 250 g box across the floor. The coefficient of kinetic friction between the box and the floor is 0.23.

What is the box's launch speed?

Answer #1

A horizontal spring with spring constant 150 N/m is compressed
17 cm and used to launch a 2.9 kg box across a frictionless,
horizontal surface. After the box travels some distance, the
surface becomes rough. The coefficient of kinetic friction of the
box on the surface is 0.15.
Use work and energy to find how far the box slides across the
rough surface before stopping.
Express your answer to two significant figures and include the
appropriate units.

A spring with a spring constant of 5000 N/m is compressed 25 cm
by a mass of 2 kg. The mass is released and the spring propels the
mass across the floor. After the mass leaves the spring it
experiences drag on the floor. The kinetic coefficient of friction
between the mass and the floor 0.25.
What is the maximum speed of the cart?
How far does the cart slide before it come to a stop?

One end of a horizontal spring with force constant 130.0 N/m N /
m is attached to a vertical wall. A 5.00-kg k g block sitting on
the floor is placed against the spring. The coefficient of kinetic
friction between the block and the floor is μk μ k = 0.400. You
apply a constant force F⃗ F → to the block. F⃗ F → has magnitude
81.0 N N and is directed toward the wall. The spring is compressed...

A 100 ? / ? constant spring horizontal spring compresses 20 ??
and is used to launch a 2.5 ?? box across a horizontal surface
without friction. After the box travels a certain distance, the
surface becomes rough. The coefficient of kinetic friction of the
box on the surface is 0.15. Determine how far the box slides on the
rough surface before stopping.

A 89 g box is attached to a horizontal spring an compressed 9 cm
to the left with a spring constant of 34 N/m. The box is released
and undergoes SHM. a. What is the max speed of the box b. What is
the speed of the box when it reaches 6.9 cm from the equilibrium
position?

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 box with a mass of 1.386 kilograms collides head-on with a
spring constant of 1.26 m*N. When the box stopped, the spring was
compressed by 25.05 centimeters.
The kinetic friction coefficient between the box and the floor is
0.484 and the gravitational acceleration is 9.8 m/s2. At this
point, obtain the speed (m/s) of the box just before it comes into
contact with the spring.

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...

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?

You push a 4.5 kg block against a horizontal spring, compressing
the spring by 26 cm. Then you release the block, and the spring
sends it sliding across a tabletop. It stops 84 cm from where you
released it. The spring constant is 280 N/m. What is the
coefficient of kinetic friction between the block and the
table?

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