Question

A projectile is fired from ground level at an angle of 65 ∘ above the horizontal with an initial speed of 29 m/s .

What is the magnitude of its instantaneous velocity at the moment it is fired?

What is the direction (relative to horizontal) of its instantaneous velocity at the moment it is fired?

What is the magnitude of its instantaneous velocity the moment it reaches its maximum height?

What is the direction (relative to horizontal) of its instantaneous velocity the moment it reaches its maximum height?

What is the magnitude of its instantaneous velocity the moment before it hits the ground?

What is the direction (relative to horizontal) of its instantaneous velocity the moment before it hits the ground?

What is the direction (relative to horizontal) of its instantaneous velocity the moment before it hits the ground?

65 ∘ above the horizontal |

0∘ with respect to the horizontal |

65 ∘ below the horizontal |

Answer #1

A projectile is fired from ground level at an angle of 60° above
the horizontal with an initial speed of 30 m/s. What are the
magnitude and direction (relative to horizontal) of its
instantaneous velocity at
(a) the moment it is fired,
(b) the moment it reaches its maximum height, and
(c) the moment before it hits 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...

A 44.0-kg projectile is fired at an angle of 30.0° above the
horizontal with an initial speed of 144 m/s from the top of a cliff
120 m above level ground, where the ground is taken to be
y = 0.
(a) What is the initial total mechanical energy of the
projectile? (Give your answer to at least three significant
figures.)
(b) Suppose the projectile is traveling 102.1 m/s at its maximum
height of y = 336 m.
How much...

A projectile is fired from the ground (you can assume the
initial height is the same as the ground) in a field so there are
no obstacles in its way. The same projectile was then fired in the
same way toward a wall that is a horizontal distance (d) m from
where the projectile was fired, and the projectile (as it's going
down) hit the wall. If the wall were slightly farther from where
the projectile was launched (the projectile...

A projectile is fired at an angle of 55 ∘ above the horizontal
at a speed of 110 m/s.
A) Calculate the magnitude of its velocity at t=5s
B) Calculate the direction of its velocity (above the
horizontal) at t=5s.
C) Calculate the magnitude of its velocity at t=10s.
D) Calculate the direction of its velocity (above the
horizontal) at t=10s.
E) Calculate the magnitude of its velocity at t=15s.
F) Calculate the direction of its velocity (above the
horizontal)...

A projectile is shot off of a cliff at an angle of 30◦ with
respect to the horizontal. The projectile reaches a height of 7.0m
above the cliff. The object hits the ground 15m from the base of
the cliff. A) Find the initial velocity. B) Find the height C) Find
the magnitude and direction of the projectile’s velocity just prior
to it reaching the ground.

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...

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 fired from cannon (مدفع) at ground level at 45
degrees with respect to the horizontal. Neglect air resistance,
When the projectile reaches maximum height, The ratio of the
horizontal distance traveled by the projectile to maximum height
is

A projectile is fired at an angle of 28 degrees above the
horizontal with an initial velocity of 1,800 feet per second from
an altitude of 1,000 feet above the ground.
A) Formulate the vector valued function (in simplified form) for
the position of the projectile at any time, t.
B) When and where (in terms of down range distance) does the
projectile strike the ground? Be clear and label your results,
including units.
C) When does the projectile reach...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 34 minutes ago

asked 46 minutes ago

asked 52 minutes ago

asked 52 minutes ago

asked 54 minutes ago

asked 59 minutes ago

asked 59 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago