offshoreext

14.11.2019 • 

Physics

Aspacecraft consists of a 549-kg orbiter and a 235-kg lander. it’s moving at 66.6 km/s relative to a nearby space station along the horizontal x-axis. explosive bolts separate the orbiter and lander, after which the orbiter is moving at 47.2 km/s at a 41.4∘ angle to the motion of the original composite spacecraft (above the x-axis).

a. find the magnitude of the lander’s velocity.

b.find the direction of the lander’s velocity.

Ответ:

olive4945

17.12.2020

Physics

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Momentum before firing = momentum after firing
momentum = mass×velocity
  m1= 0.65 kg, v1= 5×10² m/s
m2 = 4, v2=?
m1v1=m2v2
v2=m1v1/m2= (0.65×5×10²)/4= 81.25 m/s

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