Question

**1.**You are in a plane that flies horizontally
with speed 900 km/h ( 250 m/s) when an engine falls off. Neglecting
air drag, assume it takes 25 seconds for the engine to hit the
ground.

(a) How high was the plane flying?

(b) What is the horizontal distance that the engine covers before hitting the ground?

(c) If the plane somehow continuous to fly as if nothing had happened, where is the engine relative to the airplane at the moment the engine hits the ground?

**2.** At a particular point in orbit a satellite
in an elliptical orbit has a gravitational PE of 6000 MJ with
respect to Earth's surface and a KE of 5000 MJ. Later in its orbit,
the satellite 's PE is 7000 MJ. What is its KE at that point?
Explain.

Answer #1

4. An air plane flies horizontally with
X-velocity V0x= 360 m/s at
an altitude (height above the ground)=H=Dy= 3645
m. A bag of mass M=40 Kg falls off from
the plane, and moves to the ground in a parabolic path without air
resistance while the plane ciontinues to fly horizontally. Use
g=10 m/s2 and V0Y=0
Part A
The time the bag takes to hit the ground is t=____
seconds
The time the bag takes to hit the ground is t=____...

A 520.0 −g−g bird is flying horizontally at 2.50 m/s, not paying
much attention, when it suddenly flies into a stationary vertical
bar, hitting it 25.0 cm below the top (the figure (Figure 1)). The
bar is uniform, 0.800 m long, has a mass of 1.80 kg , and is hinged
at its base. The collision stuns the bird so that it just drops to
the ground afterward (but soon recovers to fly happily away).
a)What is the angular velocity...

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