Question

A bullet with mass 25 g and initial horizontal velocity 320 m/s strikes a block of mass 2 kg that rests on a frictionless surface and is attached to one end of a spring. The bullet becomes embedded in the block. The other end of the spring is attached to the wall. The impact compress the spring a maximum distance of 25 cm . After the impact, the block moves in simple harmonic motion.

1. What is the frequency of the oscillation?

2. Sketch graphs for the block’s position, velocity, and acceleration as a function of time (x vs. t, v vs. t, a vs. t). Check to make sure your graphs are consistent.

3. Write an description of what is happening to the energy in this system from the time the bullet is fired until the block returns to its starting position for the first time. Meaning, tell a story about how the energy changes form or moves from one object to another.

Answer #1

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A
rifle bullet with mass 8.00 g strikes and embeds itself in a block
with a mass of 0.992 kg that rests on a frictionless, horizontal
surface and is attached to a coil spring. (See (Figure 1).) The
impact compresses the spring 15.0 cm . Calibration of the spring
shows that a force of 0.650 N is required to compress the spring
0.200 cm .
Find the magnitude of the block's velocity just after impact
(m/s)
What was the initial...

A rifle bullet with mass 15.0 g strikes and embeds itself in a
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the beginning. The spring constant is 550 N/m. The initial velocity
of the bullet was 700 m/s. The impact compresses the spring by x
(see figure below). 1) Find the magnitude of the block's velocity
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A 58 gram bullet with a horizontal velocity of 240 m/s hits a
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A block of mass M = 5.80 kg, at rest on a horizontal
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figure). Assuming the compression of the spring is negligible until
the bullet is embedded, determine (a) the speed of the block
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10. A bullet of mass M1= 0.4 Kg
moving with initial velocity V1i= 800
m/s gets embedded into a block of wood of mass
M2= 3.6 Kg that was initially at rest
(V2i=0). The block is attached to a
spring having spring constant K=400 N/m. After
making the inelastic collision, the bullet-block
combination slides on a horizontal frictioless surface and
compresses the spring.
Part A
The amount of compression distance delta
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A 5
kg block of wood connected to a horizontal spring (constant 130
N/m) is at rest on a frictionless plane. Bullet (50 mg) is fired at
block and horizontal velocity is 25 m/s and bullet is stuck in it.
The block goes through simple harmonic oscillation.
What is the amplitude of resulting oscillation?
What is the total mechanical energy of the block with the
bullet inside?
What is the magnitude of velocity of the block with the bullet
when...

ANSWER ASAP PLEASEEEE
A block with a mass of 0.85 kg rests on a horizontal,
frictionless surface and is attached to an unstretched spring of
length 20 cm. The spring constant of the spring is 9.5 x 103 N/m.
The spring is attached to a wall at its other end. A 7.50-grams,
9-mm-diameter bullet is fired into the block at a speed of 350 m/s
and embeds itself in the block. The system now starts
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A. Treat the collision...

A bullet with a mass ?b=12.7 g is fired into a block of wood at
velocity ?b=261 m/s. The block is attached to a spring that has a
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velocity v_b=265 m/s. The block is attached to a spring that has
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move, compressing the spring by 35.0 cm before the whole system
momentarily comes to a stop. Assuming that the surface on which the
block is resting is frictionless, determine the mass of the wooden
block.

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