Question

A block of mass m=12 kg is released from rest on an incline with a coefficient of kinetic friction 0.25, and at an angle θ=30◦ . Below the block is a spring that can be compressed 2.5 cm by a force of 280 N. The block momentarily stops when it compresses the spring by 5.5 cm. (a) How far does the block move down the incline from its rest position to this stopping point? (b) What is the speed of the block just as it touches the spring?

Answer #1

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1) A block is released from point A and it slides down an
incline (theta = 30 degrees) where the coefficient of kinetic
friction is 0.3. It goes 5m and hits a spring with a spring
constant k = 500 N/m. While it is being acted upon by the spring,
assume it is on a frictionless surface.
a) How far is the spring compressed?
b) How far does the block go up the plane on the rebound from
the spring?...

Name:__________________________________________Section____
A block of mass ? = 12.0 kg is released from rest on an incline
angled at θ = 30 degrees. The block slides down and incline of
length ? = 1.40 m along the incline, which has a coefficient of
kinetic friction between the incline and the block of ?? = 0.180.
The block then slides on a horizontal frictionless surface until it
encounters a spring with a spring constant of ? = 205 N/m. Refer to
the...

A block of mass m = 3.3 kg is on an inclined plane with
a coefficient of friction μ1 = 0.39, at an
initial height h = 0.53 m above the ground. The plane is
inclined at an angle θ = 44°. The block is then compressed
against a spring a distance Δx = 0.13 m from its
equilibrium point (the spring has a spring constant of
k1 = 35 N/m) and released. At the bottom of the
inclined plane...

A 193 g block is pressed against a spring of force constant 1.12
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horizontal.
A) Determine how far up the incline the block moves before it
stops if there is no friction between the block and the ramp.
B) How far up the incline does the block move before it stops if
the coefficient of kinetic friction...

A block of mass 0.25 kg is against a spring compressed at 0.20 m
with spring constant 50 N/m. When the spring is released, the block
moves along the frictionless surface until entering a region with
the coefficient of kinetic friction equal to 0.30 (when the block
enters the friction region it is no longer in contact with the
spring ). How far,L,into the region with friction does the block
slide before stopping?

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 231-g block is pressed against a spring of force constant 1.12
kN/m until the block compresses the spring 10.0 cm. The spring
rests at the bottom of a ramp inclined at 60.0° to the horizontal.
Using energy considerations, determine how far up the incline the
block moves from its initial position before it stops under the
following conditions.
(a) if the ramp exerts no friction force on the block.
Ans:2.86
I dont understand partB
(b) if the coefficient of...

A 2kg block is released from the top of a 37º incline at a
distance of 0.4 m from a light, unstretched spring. At the end of
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coefficient of kinetic friction between the incline is 0.2
determine the spring constant.
The answer is 880N/m how does one find this answer thanks for
your help.

Starting from rest, a 4.30-kg block slides 1.80 m down a rough
30.0° incline. The coefficient of kinetic friction between the
block and the incline is ?k = 0.436.
(a) Determine the work done by the force of gravity. J
(b) Determine the work done by the friction force between block
and incline. J
(c) Determine the work done by the normal force. J
(d) Qualitatively, how would the answers change if a shorter
ramp at a steeper angle were...

A 5.0 kg block is
placed at rest on a 30 degree incline. The coefficient of static
friction is 0.7, and the coefficient of kinetic friction is lower
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a) Draw a free body
diagram of the block including all force components and determine
the net force.
b) Will the block
begin to slide or will it remain at rest?

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