Question

*A bullet shot from a small firearm has an initial velocity
v0 of 52 m/s at an angle theta = 42 with respect to the horizontal.
At the maximum trajectory (max height), we observe that, the bullet
explodes into two small pieces both of which are of equal mass. One
fragment immediately after the explosion is therefore
zero m/s and it falls vertically.*

*How long (in seconds) does it take the shell to reach this
point trajectory (max height)?*

*What is the velocity of each fragment at this point (max
height) in ?̂, ?̂vector notation?*

*How far from the firing position does each piece land we
assume that there are no external forces, no air resistance, and
that the plane is linear.*

Answer #1

A shell is shot with an initial velocity of 21 m/s, at an angle
of 62 degrees above the horizontal. How long does it take for the
shell to get to the top of its trajectory? At the top of the
trajectory, the shell explodes into two fragments of equal mass, as
shown in the figure below. One fragment, whose speed immediately
after the explosion is zero, falls vertically. How far from the gun
does this fragment land, assuming that...

(hrw8c9p15) A shell is fired from a gun with a muzzle velocity of
39 m/s, at an angle of 60° with the horizontal. At the top
of the trajectory, the shell explodes into two fragments of equal
mass (see the figure). One fragment, whose speed immediately after
the explosion is zero, falls vertically. How far from the gun does
the other fragment land, assuming that the terrain is level and
that the air drag is negligible?

A 14-kg shell is fired from a gun with a muzzle velocity 100 m/s
at 42o above the horizontal. At the top of the trajectory, the
shell explodes into two fragments of equal mass. One fragment,
whose speed immediately after the explosion is zero, falls
vertically. Calculate the range of the other fragment, assuming
level terrain.

A 32-kg shell is fired from a gun with a muzzle velocity 80 m/s
at 50o above the horizontal. At the top of the
trajectory, the shell explodes into two fragments of equal mass.
One fragment, whose speed immediately after the explosion is zero,
falls vertically. Calculate the range of the other fragment,
assuming level terrain.

An artillery shell is fired with an initial velocity of 300 m/s
at 59.0° above the horizontal. To clear an avalanche, it explodes
on a mountainside 41.0 s after firing. (a) What are the x
and y components of the shell where it explodes, relative
to its firing point? (b) What is the velocity of the shell
(magnitude and direction) just before explosion? (c) What was the
maximum height reached by the projectile? (d) How long did it take
for...

Suppose a 11.0 kg fireworks shell is shot into the air with an
initial velocity of 68.0 m/s at an angle of 80.0° above the
horizontal. At the highest point of its trajectory, a small
explosive charge separates it into two pieces, neither of which
ignite (two duds). One 9.00 kg piece falls straight down, having
zero velocity just after the explosion. Neglect air resistance (a
poor approximation, but do it anyway). (a) At what horizontal
distance (in m) from...

A bullet is launched with an initial speed of 1245 m/s. The
initial velocity in the y-direction is 515 m/s and the initial
velocity in the x-direction is -1208 m/s. When the bullet reaches
the peak of its trajectory, what is the velocity and the
acceleration in the x-direction and what is the velocity and the
acceleration in the y-direction? Consider up to be positive. Please
include a diagram and an explanation of each step. Do you use the
max...

A 75 g bullet is shot at a initial horizontal velocity
of 150 m/s and makes a completely inelastic collision with a 4.0 kg
block of wood connected to a hanging pendulum. What is the maximum
height the pendulum, containing the combined mass of the bullet and
block of wood, reaches?

An artillery shell is red with an initial velocity of 328 m/s at
51.1 degrees above the
horizontal. To clear an avalanche, it explodes on a mountainside
42.1 s after firing. What
are the (a) x and (b) y coordinates of the shell where it
explodes, relative to its firing
point? What are the (c) x and (d) y components of its velocity
just before it hits the
mountainside? Be sure to include the correct sign on the
answers.

projectile - a bullet shot horizontally
Given - initial speed in m/s and the distance to a target in
meters. (let's say for this example the bullet is shot horizontally
at an initial speed of 900m/s at a target that is 140 meters away;
additionally, for the value of g we use 9.8 in my class opposed to
the flat 10 found within the course text. I, like my instructor,
dabble in something called precision, but I'll know what you're...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 minute ago

asked 2 minutes ago

asked 10 minutes ago

asked 40 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago