Question

A 100-g bullet is fired horizontally into a 14.9-kg block of wood resting on a horizontal frictionless surface, and the bullet becomes embedded in the block. If the muzzle speed of the bullet is 250. m/s, a) what is the speed of the block immediately after the impact? b) what is the average force acting on the block during that 8.50 ms collision?

Answer #1

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 4.5 g is fired horizontally into a 2.4 kg
wooden block at rest on a horizontal surface. The bullet is
embedded in the block. The speed of the block immediately after the
bullet stops relative to it is 2.7 m/s. At what speed is the bullet
fired?

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 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 2.8 kg block of wood sits on a frictionless table. A 3.0 g
bullet, fired horizontally at a speed of 400 m/s , goes completely
through the block, emerging at a speed of 220 m/s .
What is the speed of the block immediately after the bullet
exits?

A 7.00 g bullet, when fired from a gun into a 0.90 kg block of
wood held in a vise, penetrates the block to a depth of 9.20 cm.
This block of wood is next placed on a frictionless horizontal
surface, and a second 7.00 g bullet is fired from the gun into the
block.
To what depth will the bullet penetrate the block in this case?
cm

13. A 10.0-g bullet is fired into a stationary block of wood
(m = 5.00 kg) at the speed of 300 m/s, the
relative motion of the bullet stops inside the block. Determine the
speed of the bullet-plus-wood combination immediately after the
collision.

A 10 g bullet is fired into a 9.0 kg wood block that is at rest
on a wood table. The block, with the bullet embedded, slides 5.0 cm
across the table. The coefficient of kinetic friction for wood
sliding on wood is 0.20. What was the speed of the bullet?

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)A 2.9 kg block of wood sits on a table. A 0.0035 kg bullet,
fired horizontally at a speed of 440 m/s, goes completely through
the block, emerging at a speed of 140 m/s.What is the speed of the
block immediately after the bullet exits?
Answer in m/s
B)A small, 0.43 kg cart is moving at 1.4 m/s on an air track
when it collides with a larger, 5 kg cart at rest. After the
collision, the small cart recoils...

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