Physics, 07.04.2020 01:16 alimfelipe
An engineer is considering possible trajectories to use for emergency descent of a lunar module from low moon orbit to the lunar surface and decides it to) to investigate one for which the vertical component of velocity as a function of time is described by vy(t) = voe 2:2 where vo = 0.49 km/s, to = 390 s, and o = 65 s. Part F = to-o= 325 s? Recall that acceleration is For this trajectory, what would the vertical component of acceleration for the module be at time tm the derivative of velocity with respect to time.
Answers: 2
Physics, 22.06.2019 20:10, hncriciacheichi
Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
Answers: 1
Physics, 23.06.2019 00:00, supermkimbrel
A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be −1,200 m/s.
Answers: 3
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