Question

A 4.9 g dart is fired into a block of wood with a mass of 24.0 g. The wood block is initially at rest on a 1.4 m tall post. After the collision, the wood block and dart land 3.6 m from the base of the post. Find the initial speed of the dart.

Answer #1

A bullet of mass 12.4 g is fired into an initially stationary
block and comes to rest in the block. The block, of mass 1.15 kg,
is subject to no horizontal external forces during the collision
with the bullet. After the collision, the block is observed to move
at a speed of 4.00 m

A bullet of mass m = 8.00 g is fired into a block of mass M =
250 g that is initially at rest at the edge of a table of height h
= 1.00 m. The bullet remains in the block, and after the impact the
block lands d = 2.00 m from the bottom of the table. Determine the
initial speed of the bullet.

A bullet of mass m = 8.00 g is fired into a block of
mass M = 180 g that is initially at rest at the edge of a
table of height h = 1.00 m (see figure below). The bullet
remains in the block, and after the impact the block lands
d = 2.10 m from the bottom of the table.
Determine the initial speed of the bullet.
m/s

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 bullet of mass 4 g moving with an initial speed 400 m/s is
fired into and passes through a block of mass 5 kg, as shown in the
figure. The block, initially at rest on a frictionless, horizontal
surface, is connected to a spring of force constant 538 N/m. If the
block moves a distance 1.3 cm to the right after the bullet passed
through it, find the speed v at which the bullet emerges from the
block and...

A bullet is fired toward a block of wood (m1 = 1.17
kg) sitting on a frictionless surface. The bullet has a mass
mb = 30 g, and its initial velocity is 320 m/s in the
+x-direction. The bullet embeds itself inside the block of wood.
Then the block of wood (with bullet) collides with another block of
wood (m2 = 1.20 kg). The collision is elastic. The first
block moves off at an angle of -45o with respect to...

A bullet of mass m is fired into a block of mass M that is at
rest. The block, with the bullet embedded, slides distance d across
a horizontal surface. The coefficient of kinetic friction is
?k.
What is the speed of a 9.0 g bullet that, when fired into a 8.0
kg stationary wood block, causes the block to slide 5.6 cm across a
wood table? Assume that ?k=0.20.

A bullet with mass m(lowercase m) is fired into a block of wood
with mass M(uppercase M), suspended like a pendulum, and makes a
completely inelastic collision with it. After the impact of the
bullet, the block swings up to a maximum height h. Given the values
of h = 5.00 cm = 0.0500 m, m = 6.75 g = 0.00675 kg, and M = 2.50
kg, (a) What is the (initial) velocity v_x of the bullet in m/s?
(b)...

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?

A bullet of mass m is fired into a block of mass
M that is at rest. The block, with the bullet embedded,
slides distance d across a horizontal surface. The
coefficient of kinetic friction is μk
A) What is the speed of a 12 g bullet that, when fired into a
9.0 kg stationary wood block, causes the block to slide 5.6 cm
across a wood table? Assume that μk=0.20
Express your answer to two significant figures and
include...

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