Question

In: Physics

A 0.005-kg bullet is fired with a speed of 400 m/s into a pendulum with mass...

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.

Expert Solution

(a)

During collision momentum is conserved

Initial momentum = Final momentum

--------------

When the pendulum rises, kinetic energy is converted into potential energy

(a) ANSWER:

==========================

(b)

During collision momentum is conserved

Initial momentum = Final momentum

--------------

When the pendulum rises, kinetic energy is converted into potential energy

(b) ANSWER:

==========================

genius_generous answered 14 hours ago

A 5.00-kg bullet moving with an initial speed of Vi= 400 m/s is fired into and...

A 5.00-kg bullet moving with an initial speed of Vi= 400 m/s is fired into and passes through a 1.00-kg block as shown in the Figure. The block, initially at rest on a frictionless, horizontal surface, is connected to a spring with force constant 1000 N/m. The block moves d = 5.00 cm to the right after impact before being brought to rest by the spring. Find: The speed at which the bullet emerges from the block. The kinetic energy...

A bullet with a mass of 4.1g and a speed of 650m/s is fired at a...

A bullet with a mass of 4.1g and a speed of 650m/s is fired at a block of wood with a mass of 9.6*10^2kg . The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the block is 22m/s . Part A What is the speed of the bullet when it exits the block? (m/s) Part B Is the final kinetic energy...

A bullet of mass 0.010 kg and speed of 100 m/s is brought to rest in...

A bullet of mass 0.010 kg and speed of 100 m/s is brought to rest in a wooden block after penetrating a distance of 0.10 m. The work done on the bullet by the block is A. 50 J. B. - 50 J. C. 0.001 J. D. - 0.001 J. E. zero.

A bullet of mass m=20 gr is fired into a block of mass M=5 kg initially...

A bullet of mass m=20 gr is fired into a block of mass M=5 kg initially at rest at the edge of a frictionless table of height h=0.90 m. The bullet remains in the block and the block lands a distance d=0.68 m from the bottom of the table. Picture1 a)Determine the initial velocity of the bullet. vi= m/s b) Determine the loss of kinetic Energy during the collision. ΔK = J.

A bullet of mass m=11 gr is fired into a block of mass M=1 kg initially...

A bullet of mass m=11 gr is fired into a block of mass M=1 kg initially at rest at the edge of a frictionless table of height h=1.10 m. The bullet remains in the block and the block lands a distance d=0.67 m from the bottom of the table. a)Determine the initial velocity of the bullet. b) Determine the loss of kinetic Energy during the collision.

A bullet of mass m=12 gr is fired into a block of mass M=1 kg initially...

A bullet of mass m=12 gr is fired into a block of mass M=1 kg initially at rest at the edge of a frictionless table of height h=1.00 m. The bullet remains in the block and the block lands a distance d=0.60 m from the bottom of the table. a)Determine the initial velocity of the bullet. vi= m/s b) Determine the loss of kinetic energy during the collision. ΔK = J

A bullet of mass m=14 gr is fired into a block of mass M=1 kg initially...

A bullet of mass m=14 gr is fired into a block of mass M=1 kg initially at rest at the edge of a frictionless table of height h=1.10 m. The bullet remains in the block and the block lands a distance d=0.65 m from the bottom of the table. Determine the initial velocity of the bullet. Determine the loss of kinetic Energy during the collision

A bullet of mass 148 g and a speed v impacts on a pendulum of mass...

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?

A rifle of mass M is initially at rest. A bullet of mass m is fired...

A rifle of mass M is initially at rest. A bullet of mass m is fired from the rifle with a velocity v relative to the ground. Which one of the following expressions gives the velocity of the rifle relative to the ground after the bullet is fired? A) −mv B) mv C) Mv/m D) mv/M

A bullet of mass m = 8.00 g is fired into a block of mass M...

A bullet of mass m = 8.00 g is fired into a block of mass M = 220 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