Question

A 24.0g bullet is fired horizontally, embedding itself in a 10.0kg block initially at rest on a horizontal ice surface. The block (with the bullet embedded) slides along the ice, coming to rest in 2.00s at a distance of 60.0cm from its original position. Assume that the frictional force stopping the block is constant.

a) Calculate the initial velocity of the bullet-block combination.

b) Calculate the initial velocity of the bullet.

c) Is this an elastic or inelastic collision? How do you know?

Answer #1

A 12.0g bullet is fired horizontally into a 650g block that is
initially at rest on a frictionless horizontal surface. The initial
velocity of the bullet is 450m/s. After the bullet is embedded into
the block, the bullet-block system slides along the frictionless
surface into a spring having spring constant k=470N/m
a. What is the speed of the block after the bullet once it’s
stuck in the block
b. What was the work done on the bullet during the collision...

A 0.0200 kg bullet moving horizontally at 400 m/s embeds itself
into an initially stationary 0.500 kg block.
(a) What is their velocity just after the collision? m/s
(b) The bullet-embedded block slides 8.0 m on a horizontal
surface with a 0.30 kinetic coefficient of friction. Now what is
its velocity? m/s
(c) The bullet-embedded block now strikes and sticks to a
stationary 2.00 kg block. How far does this combination travel
before stopping? m

A 0.0220 kg bullet moving horizontally at 400 m/s embeds itself
into an initially stationary 0.500 kg block.
(a) What is their velocity just after the collision? m/s
(b) The bullet-embedded block slides 8.0 m on a horizontal
surface with a 0.30 kinetic coefficient of friction. Now what is
its velocity? m/s
(c) The bullet-embedded block now strikes and sticks to a
stationary 2.00 kg block. How far does this combination travel
before stopping? m

A 12.0-g bullet is fired horizontally into a 116-g wooden block
that is initially at rest on a frictionless horizontal surface and
connected to a spring having spring constant 151 N/m. The bullet
becomes embedded in the block. If the bullet-block system
compresses the spring by a maximum of 81.0 cm, what was the speed
of the bullet at impact with the block?

a bullet of mass m=5g is fired into a wooden block with mass M=
0.995 kg which then compresses a spring (k=100N/m by a distance of
x=0.1 before coming to rest. the bullet remains embedded in the
wooden block. ignore friction between the block and table. a) what
is initial speed of the bullet? b) calculate total kinetic energy
of the bullet block-system immediately before and after the
collision. is the collision between the bullet and the block
elastic or...

A 5.50 g bullet is fired horizontally into a 1.40 kg wooden
block resting on a horizontal surface. The coefficient of kinetic
friction between block and surface is 0.200. The bullet remains
embedded in the block, which is observed to slide 0.230 m along the
surface before stopping. Find the initial speed of the bullet.

A bullet of mass 6.00 g is fired horizontally into a wooden
block of mass 1.29 kg resting on a horizontal surface. The
coefficient of kinetic friction between block and surface is 0.210.
The bullet remains embedded in the block, which is observed to
slide a distance 0.290 m along the surface before stopping.
What was the initial speed of the bullet?

A bullet of mass 4.00 gg is fired horizontally into a wooden
block of mass 1.14 kgkg resting on a horizontal surface. The
coefficient of kinetic friction between block and surface is 0.170.
The bullet remains embedded in the block, which is observed to
slide a distance 0.270 mm along the surface before stopping.
Part A
What was the initial speed of the bullet?

A 10 g bullet is fired with 450 m/s into a 10 kg block that sits
at rest on a wooden table 20 cm from the edge of the table. The
bullet gets embedded in the block (perfectly inelastic collision).
The block, with the embedded bullet, then slides to the edge of the
table and drops down with some initial velocity while leaving the
edge of the table. The coefficient of kinetic friction between the
block and the surface of...

A 92.0 g wooden block is initially at rest on a rough horizontal
surface when a 11.0 g bullet is fired horizontally into (but does
not go through) it. After the impact, the block–bullet combination
slides 6.5 m before coming to rest. If the coefficient of kinetic
friction between block and surface is 0.750, determine the speed of
the bullet (in m/s) immediately before impact.

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