Question

A bullet with mass *59* *grams* hits a pendulum
with length *29 cm* and mass *212 grams* and lodges
in it. When the bullet hits the pendulum it swings up from the
equilibrium position and reaches an angle *25*
*degrees* at its maximum.

What is the **bullet’s velocity** in meters per
second?

Answer #1

When a spring is compressed...
The potential energy is a minimum and kinetic energy is at a
minimum.
The potential energy is at a minimum and kinetic energy is at a
maximum.
The potential energy is at a maximum and kinetic energy is at a
minimum.
The potential energy is at a maximum and kinetic energy is at a
maximum.
A ball mass 6 g is placed in front of a spring
compressed by 7.21 cm. Right after launch, the...

2. In a “ballistic pendulum,” the bullet is fired at a massive
pendulum bob that is hanging straight downward at rest. The bullet
embeds itself in the bob, and the bob+bullet together swing up to
some maximum height before pausing to swing back downward.
a.) If the bullet has a mass of 30. g, the bob’s mass is 5.0 kg,
and the bob+bullet reaches a final height of 50. cm after impact,
what is the speed of the bullet just...

1 bullet of mass 10.5 grams is fired into a block of wood with a
mass of 6.5 kg. The length of the pendulum is 6 meters. The block
swings back 8.8000cm. How fast was the bullet traveling before
striking the block? How much thermal energy was produced when the
bullet struck the block? What % of the bullet's kinetic energy was
transformed into thermal energy?

A bullet of mass 4 grams and velocity of 400 meters per second
hits a wooden box of mass 0.5 kg and emerges from the other end.(a)
Find the velocity of the wooden box just after the bullet went
through it.(b) How high does the wooden box swing?(c) What fraction
of energy was lost as bullet went through the box?

A 7.00 g bullet is fired into a ballistic pendulum with length
of 82 cm and mass of 0.95 kg. If the pendulum then rises to an
angle of 5.40, what was the initial speed of the bullet?
can you please show in detail how you worked the problem

A simple pendulum, consisting of a string (of negligible mass)
of length L with a small mass m at the end, is initially held
horizontal (theta = 90) and then released.
a) what is the maximum velocity that the mass attains after
release?
b) at what angle theta, is the power delivered to the ball by
gravity a maximum as the pendulum swings down? take theta = 0 when
the pendulum is vertical.

A simple pendulum has a length of 85 cm and a bob of mass 1.1
kg. When the string is at 28 degrees to the vertical. the bob has a
speed of 2.5 m/s.
a) What is the maximum speed of the bob?
b) What is the maximum angle to the vertical? degrees

A 17 g bullet is fired into the bob of a ballistic pendulum of
mass 1.3 kg. When the bob is at its maximum height, the strings
make an angle of 60° with the vertical. The length of the pendulum
is 2.3 m. Find the speed of the bullet.
_____m/s

A.) A simple pendulum is suspended from the ceiling by means of
a string of length 2.10 m. Assume that there is no friction or air
resistance. Suppose you were to release the pendulum from rest,
starting from an angle of 44.3 degrees with respect to the
vertical, as shown. What will be the speed of the pendulum at the
instant it swings through its lowest point (that is, when it s
momentarily hanging vertically)?
B.) OK, once again we...

Consider a simple pendulum with a bob of mass 4.0 kg and a
string of length 45 cm.
Part A: Which of the following is true for small angular
displacement?
a. The net torque is proportional to the negative of the angle
displaced from the equilibrium
b. The period is inversely proportional to the amplitude
c. The kinetic energy is always equal to the potential energy
d. The minimum velocity is achieved when the bob is at
equilibrium
Part B:...

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