subject
Engineering, 20.05.2021 22:00 khikhi1705

Suppose that two small spacecraft, each with a mass of 2000 kg, are drifting next to each other. One of them has an astronaut on board; with her equipment, she has a mass of 200 kg. Both craft are moving in the x−direction at a velocity of ⃗vi = (0.5 m/s, 0). An astronaut wants to travel from one to the other. She pushes off of one spacecraft and jumps onto the other craft; as she floats through the air, she travels in the y−direction with a velocity of ⃗va = (0, 1 m/s). Note that when she moves through the air, she is moving only in the y-direction.
(a) What will the velocity of the first spacecraft be after she jumps off of it? (Velocity is a vector; you can give its components.)
(b) What will the velocity of the second spacecraft be after she lands on it?
(c) Explain in words why the y−components of their final velocities are almost equal and opposite, but are not quite the same magnitude.
(d) Explain in words why the x−components of their final velocities are almost equal.

ansver
Answers: 3

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, nandalabella06
True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure
Answers: 2
image
Engineering, 04.07.2019 18:10, 0436500
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
image
Engineering, 04.07.2019 18:20, jessie8022
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
image
Engineering, 04.07.2019 19:10, batmanmarie2004
Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.
Answers: 2
You know the right answer?
Suppose that two small spacecraft, each with a mass of 2000 kg, are drifting next to each other. One...

Questions in other subjects:

Konu
Chemistry, 03.01.2020 19:31
Konu
Mathematics, 03.01.2020 19:31