Question

A streamlined and compact projectile is launched from flat ground on a valley toward a distant hillside at an Army testing ground in Nevada. The projectile’s initial speed is vi = 150. m/s as it leaves the cannon. The initial angle of launch θi of the projectile is unknown. The projectile makes impact high on the distant hill a time t = 3.00 s after its departure. From GPS sensors we know that the site of impact is a straight-line horizontal distance of Δx = 360. m from the launch site, albeit an unknown height H above the launch site. Assume an idealized situation in which air resistance has no appreciable effect on the projectile’s trajectory. a) What is vix , the x-component of the initial velocity vector? b) Find the initial angle of launch θi of the projectile. c) What is viy , the y-component of the initial velocity vector? d) How high H above the launch site does the projectile land? e) What is vfx , the x-component of the final velocity vector right before impact? f) What is vfy , the y-component of the final velocity vector right before impact? g) At what angle θf above or below the horizontal was the projectile’s final velocity vector right before impact?

Answer #1

A streamlined and compact projectile is launched from flat
ground on a valley toward a distant hillside at an Army testing
ground in Nevada. The projectile’s initial speed is vi = 150. m/s
as it leaves the cannon. The initial angle of launch θi of the
projectile is unknown. The projectile makes impact high on the
distant hill a time t = 3.00 s after its departure. From GPS
sensors we know that the site of impact is a straight-line...

A streamlined and compact projectile is launched from flat
ground on a valley toward a distant hillside at an Army testing
ground in Nevada. The projectile’s initial speed is vi = 150. m/s
as it leaves the cannon. The initial angle of launch θi of the
projectile is unknown. The projectile makes impact high on the
distant hill a time t = 3.00 s after its departure. From GPS
sensors we know that the site of impact is a straight-line...

A projectile is launched 3.0 meters above the ground. The
initial velocity of the projectile is vi and can vary between 15.0
m/s - 75.0 m/s with an initial angle of θi that can vary between
10.0o - 80.0o. You are free to choose any values between these
ranges. Clearly indicate your value for vi and θi. a) What is the
maximum height of the projectile? b) How long is the projectile in
the air? c) How far from the...

A projectile is shot horizontally at 25 m/s from the roof of a
building 90 m tall. Use g = 10 m/s2. Choose positive vertical
direction upward. •
How long does it take the projectile to reach the ground below
(round to the nearest integer) .
• What is the horizontal range of this projectile, i.e. how far
from the base of the building does the projectile land (round to
the nearest integer) .
• What is the horizontal component...

You launch a projectile toward a tall building, from a position
on the ground 30.0 m away from the base of the building. The
projectile s initial velocity is 40.5 m/s at an angle of 56.8
degrees above the horizontal. At what height above the ground does
the projectile strike the building?

1a. You launch a projectile at an initial speed of 43.8 m/s from
the ground. After 4.30 seconds of flight, the projectile lands on
the ground. At what angle above the horizontal was the projectile
launched?
b. A projectile is fired from the ground, reaches a maximum
height of 28.4 m and lands a distance of 69.3 m away from the
launch point. What was the projectile s launch velocity?
c. You launch a projectile toward a tall building, from...

A projectile is launched 3.0 meters above the ground. The
initial velocity of the projectile is and can vary between 15.0 m/s
- 75.0 m/s with an initial angle of that can vary between 10.0 -
80.0 . You are free to choose any values between these ranges.
Clearly indicate your value for and . a) What is the maximum height
of the projectile? b) How long is the projectile in the air? c) How
far from the launch does...

A projectile is shot from the edge of a cliff a 125m
above ground level with an initial speed of 65m/s at an angle of
37o below the horizontal.
Find the y-component of the VELOCITY just before it reaches the
bottom of the cliff
Find the magnitude and angle of the displacement for the entire
trip from cliff to the ground

A projectile is shot from the edge of a cliff 115 m m above
ground level with an initial speed of v0 v 0 = 54 m/s m / s at an
angle of 35.0∘
A) Determine the time taken by the projectile to hit point P P
at ground level.
B)Determine the distance XX of point PP from the base of the
vertical cliff.
C)At the instant just before the projectile hits point PP, find
the horizontal and the...

Two seconds after being projected from ground level, a
projectile is displaced 40 m horizontally and 53 m vertically above
its launch point. Its horizontal component of initial velocity is
v0x=20 m/s. Its vertical component of initial velocity
is v0y=36 m/s. At the instant the projectile reaches
maximum height above ground level, the displacement is x=74 m.
Answer questions a, b, and c below. Show all work and details.
Give explanation for your answer.
a) What is the horizontal range...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 10 minutes ago

asked 11 minutes ago

asked 25 minutes ago

asked 34 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