Question

An 97 kg spacewalking astronaut pushes off a 685 kg satellite, exerting a 97 N force for the 0.5 s it takes him to straighten his arms.

a. What impulse is delivered to the astronaut from the satellite? kg m/s

b. What's the speed of the astronaut after he pushes off? (We'll call the astronaut and satellites initial velocity 0.) m/s

c. What's the speed of the satellite after the astronaut pushes off? m/s

d. How far apart are the astronaut and the satellite after 1 min? Note after pushing off, the astronaut and satellite float away from one another with constant velocity (relative to teach other.) (Technically they are both in orbit about the Earth, but we don't need to worry about that.)

Answer 1

(a) Imbule - Foto 97*.5= 4-8.5 N-S Ans (6) Impule applied by satellite on astronaught het - My Insule Magnitude of impube applied on sal by astronaut = 48.5 X-series Impulse = change in momenten van rel ve 4815 10) Vsa z 0.0708- (-0.5) = 0.5703 m/s relative distance after I min = 0.5708*60 = 34.25m 48.5 = 0.5mls Art '97 0.0708 m/s And