Question

A space vehicle is traveling at 4150 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The relative speed between the motor and the command module is then 83 km/h. The mass of the motor is four times the mass of the module. What is the speed of the command module relative to Earth just after the separation?

Answer #1

A space vehicle is traveling at 5030 km/h relative to Earth when
the exhausted rocket motor is disengaged and sent backward. The
relative speed between the motor and the command module is then 83
km/h. The mass of the motor is four times the mass of the module.
What is the speed of the command module relative to Earth just
after the separation?

A space vehicle is traveling at 4200 km/h relative to the Earth
when the exhausted rocket motor is disengaged and sent backward
with a speed of 84 km/h relative to the command module. The mass of
the motor is four times the mass of the module. What is the speed
(km/h) of the command module relative to Earth after the
separation? (Note: this answer requires slightly higher precision
than normal.)

The SpaceExx delivery craft is cruising at 3550 km/h relative to
the Earth when it ejects the empty rocket motor backward with a
speed of 490 km/h relative to the payload module. The mass of the
motor is five times the mass of the payload module. What is the
speed (km/h) of the payload relative to Earth after the
separation?

A rocket that is in deep space and initially at rest relative to
an inertial reference frame has a mass of 2.60 ✕ 105 kg, of which
1.92 ✕ 105 kg is fuel. The rocket engine is then fired for 250 s
while fuel is consumed at the rate of 480 kg/s. The speed of the
exhaust product relative to the rocket is 3.15 km/s.
After the 250 s firing, what is the speed of the rocket in
m/s?
Sample...

A 780-kg two-stage rocket is traveling at a speed of 6.90×103
m/s away from Earth when a predesigned explosion separates the
rocket into two sections of equal mass that then move with a speed
of 2.50×103 m/s relative to each other along the original line of
motion. a.)What is the speed of each section (relative to Earth)
after the explosion? Express your answers using three significant
figures separated by a comma. b.)What are the direction of each
section (relative to...

A 875-kgkg two-stage rocket is traveling at a speed of
6.80×103 m/sm/s away from Earth when a predesigned
explosion separates the rocket into two sections of equal mass that
then move with a speed of 2.40×103 m/sm/s relative to
each other along the original line of motion.
-What is the speed of each section (relative to Earth) after the
explosion?
-How much energy was supplied by the explosion? [Hint:
What is the change in kinetic energy as a result of...

A 740-kg two-stage rocket is traveling at a speed of 6.40×10^3
m/s away from Earth when a predesigned explosion separates the
rocket into two sections of equal mass that then move with a speed
of 2.30×10^3 m/s relative to each other along the original line of
motion.
Part A: What is the speed of each section (relative to Earth)
after the explosion?
Part B: What are the direction of each section (relative to
Earth) after the explosion?
a) both away...

A 790-kg two-stage rocket is traveling at a speed of 6.90×103
m/s away from Earth when a predesigned explosion separates the
rocket into two sections of equal mass that then move with a speed
of 2.80×103 m/s relative to each other along the original line of
motion.How much energy was supplied by the explosion? [Hint: What
is the change in kinetic energy as a result of the explosion?]

Mass of earth: 5.972x10^24 kg
Mass of Mangalyaan: 1,337.2 kg
Radius of earth: 6,378 km
Apogee: The point in the orbit of the moon or satellite at
which it is furthest from the earth.
On Nov. 5th of 2013, a space probe known as Mangalyaan was
launched and it reached its apogee of 23,500 km. Mangalyaan, then
went through 7 different apogee raising maneuvers before its
trans-mars injection on Nov. 30th, 2013. Before its final maneuver
to trans-mars injection, the...

Mass of earth: 5.972x10^24 kg
Mass of Mangalyaan: 1,337.2 kg
Radius of earth: 6,378 km
Apogee: The point in the orbit of the moon or satellite at
which it is furthest from the earth.
On Nov. 5th of 2013, a space probe known as Mangalyaan was
launched and it reached its apogee of 23,500 km. Mangalyaan, then
went through 7 different apogee raising maneuvers before its
trans-mars injection on Nov. 30th, 2013. Before its final maneuver
to trans-mars injection, the...

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