Question

A projectile is launched horizontally with an initial speed of v0 = 26 m/s at the top of a cliff in a lake (h = 80 m) (see Figure). What is the speed of the projectile when its height from the water is y = 10 m?

Answer #1

2. A projectile of mass m = 0.500 kg is launched from the ground
with the angle Θ = 60 degrees and V0 = 40.0 m/s. Here we ignore air
friction.
(a) calculate the initial mechanical energy E = KE + PE
E=
(b) What is the kinetic energy of the projectile when it reaches
the maximum height h?
Speed at the top: v =
KE =
(c) What is the potential energy of the projectile when it
reaches the...

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 horizontally from a cliff that is
15.0 m above the ground with an initial velocity of 7.50 m/s. How
far from the base of the cliff does it land?
13.1m
1.75m
23.0m
3.06m

A 0.50 kg projectile is launched horizontally at 17.9 m/s from a
50.0 m-high cliff above level ground. Determine it speed just
before it hits the ground. (Answer in m/s.)

a 42.0 kg projectile is launched horizontally from the top of
a cliff, 50 meters above the ground. the projectiles initial speed
is 30 m/s.
use g=10m/s^2
A)What is the projectiles inti kinetic energy?
B)What is the projectiles total mechanical emergy the moment
is launch?
C)What is the projectiles initial gravitational potential
energy?
D)if air resistance and other forms of friction are
negligible, the projectile speed as it flies to the ground. As this
happens, the kinetic energy will ____________,...

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 projectile is launched vertically from the surface of the Moon
with an initial speed of 1360 m/s. At what altitude is the
projectile's speed two-thirds its initial value?

A projectile is launched vertically from the surface of the Moon
with an initial speed of 1100 m/s. At what altitude is the
projectile's speed one-fourth its initial value?

A projectile is launched vertically from the surface of the Moon
with an initial speed of 1230 m/s. At what altitude is the
projectile's speed three-fifths its initial value?

A projectile is launched vertically from the surface of the Moon
with an initial speed of 1410 m/s. At what altitude is the
projectile's speed one-half its initial value?

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