Question

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 position on the ground 20.4 m away from the base of the building. The projectile s initial velocity is 53.8 m/s at an angle of 41.8 degrees above the horizontal. At what height above the ground does the projectile strike the building?

Answer #1

You launch a projectile at an initial speed of 46.4 m/s from the
ground. After 5.70 seconds of flight, the projectile lands on the
ground. At what angle above the horizontal was the projectile
launched?
A) 26.5 degrees
B) 24.1 degrees
C) 37.1 degrees
D) 48.2 degrees

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?

A projectile is fired with an initial velocity of 75.0 m/s at an
angle of 33.0 degrees above the horizontal. It lands on a hillside
50m above the level from which it was fired. Determine 1) the time
of flight of the projectile. 2) the maximum height to which it
rises. 3) the horizontal distance from launching to landing
points.

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 launched upward with an initial velocity of 25
m/s at an angle of 53 degrees above the horizontal.
How far will the projectile travel horizontally before it
reaches the same height it was launched from?
How long will the projectile be in the air if it is launched
from a height of 32 meters above flat ground?
The answers are 60m and 5.2s. Can you please show how to get to
that?

(a) A projectile is fired off the roof of a 15m tall building,
with a speed of 17 m/s and angle of 40o above the horizontal. What
is the maximum height, above the ground, of the projectile?
(b) A projectile is fired off the roof of a 15m tall building,
with a speed of 17 m/s and angle of 40o above the horizontal. How
far away from the building does the projectile land?

A projectile is launched with an initial speed of 40.0 m/s at an
angle of 35.0° above the horizontal. The projectile lands on a
hillside 3.85 s later. Neglect air friction. (Assume that the
+x-axis is to the right and the +y-axis is up along the page.) (a)
What is the projectile's velocity at the highest point of its
trajectory? magnitude m/s direction ° counterclockwise from the
+x-axis (b) What is the straight-line distance from where the
projectile was launched...

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 launched from a cannon; it has an initial speed
of 85 m/s at an angle of 33 degrees above horizontal. The muzzle of
the cannon is 2.5 meters above the ground. How far down range will
the projectile land?

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...

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