A bullet of mass 2.7 g strikes a ballistic pendulum of mass 2.7
kg. The center...
A bullet of mass 2.7 g strikes a ballistic pendulum of mass 2.7
kg. The center of mass of the pendulum rises a vertical distance of
11 cm. Assuming that the bullet remains embedded in the pendulum,
calculate the bullet's initial speed.
A bullet of mass 4.3 g strikes a ballistic pendulum of mass 1.9
kg. The center of mass of the pendulum rises a vertical distance of
12 cm. Assuming that the bullet remains embedded in the pendulum,
calculate the bullet's initial speed.
A spring gun fires a bullet of mass m=.04 kg horizontally at a
ballistic pendulum apparatus with a mass M=.350. the bullet lodges
itself into the pendulum. After collision, the center of mass of
the bullet and pendulum rises by .07 meters. What is the
approximate initial speed v of the bullet?
A bullet of mass 148 g and a speed v impacts on a
pendulum of mass 6.18 kg and length 200 cm. The bullet embeds
itself in the pendulum bob. The pendulum then travels in a complete
and perfect circle.
(a) If the pendulum is suspended by a light, stiff rod, what is the
minimum speed of the bullet?
(b) If the pendulum is suspended by a string, what is the minimum
speed of the bullet?
Show a complete derivation of the “muzzle speed” of the bullet
from the ballistic pendulum. You will use conservation of energy
and conservation of momentum to determine vmuzzle in terms of mB
the mass of the bullet, MP the mass of the pendulum, and h the
change in height of the combined pendulum/bullet mass after they
stick together. This will be called the “ballistic pendulum
equation”
A 0.005-kg bullet is fired with a speed of 400 m/s into a
pendulum with mass 1 kg suspended from a massless cord 2 m
long.
a. If the bullet is embedded after the collision, calculate the
vertical height of the pendulum rise.
b. If the bullet is made of rubber and it bounces back at a
speed of 400 m/s, calculate the vertical height of the pendulum
rise.
A ballistic with mass of m=5.38-Oz was fired towards a
Ballistic Pendulum at initial velocity of υ into a large block of
wood with mass of M=20.31_kg. As a result of the collision
the pendulum and the projectile together swung up to the maximum
height h = 0.831_m at a velocity of
υb. Find a) υb velocity
soon after impact, b) initial velocity υa , c)
KE of the small mass, d) KE of the combined mass, e) PE of...
In Fig. 8.3, a bullet of mass 0.01 kg moving horizontally
strikes a block of wood of mass 1.5 kg which is suspended as a
pendulum. The bullet lodges in the wood, and together they swing
upward a distance of 0.40 m. What was the velocity of the bullet
just before it struck the wooden block? The length of the string is
2 meters.
Fill the spaces
1. In the ballistic pendulum, if the ball mass is m1 = 10g and
the block mass is 8.0kg and the height you both reach is 5.0cm, the
initial speed of the ball is________.
2. When the external net _________ on an object system is
zero, the total amount of movement remains at ________.
3. The ________ of a force on an object is equal to the change
in the momentum of the object so much that...
A ballistic pendulum consists of a large heavy mass, M on the
end of a very light rod of length L. The rod is free to pivot at
the top and the mass is attached at the bottom, so it hangs like a
pendulum. A second mass, m, is fired horizontally at speed v
straight into the large mass, and they stick together. The pendulum
swings to a maximum angle ?m.
a)Show that you can measure v by measuring ?m,...
A
8-g bullet moving horizontally with speed of 250 m/s strikes and
remains in a 4.0-kg block initially at rest on the edge of a table.
The block, which is initially 80 cm above the floor, strikes the
floor a horizontal distance from the base of table. What is the
horizontal distance on the floor?