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gogolik [260]
3 years ago
7

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.
Physics
1 answer:
xxTIMURxx [149]3 years ago
4 0

Answer:

4.57 m/s

Explanation:

We are given that

v_y(t)=v_0e^{-\frac{(t-t_0)^2}{2\sigma^2}}

v_0=0.49 km/s=490m/s

1km=1000 m

t_0=390 s

\sigma=65

t=325 s

v'_y(t)=v_0\times (-2\frac{(t-t_0)}{2\sigma^2})e^{-\frac{(t-t_0)^2}{2\sigma^2}}

Substitute the values

a_y=v'_y=2\times 490\times \frac{-(325-390)}{2(65)^2}e^{-\frac{(325-390)^2}{2(65)^2}}

a_y=v'_y=4.57m/s

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A flywheel with radius of 0.400 mm starts from rest and accelerates with a constant angular acceleration of 0.600 rad/s2rad/s2.
charle [14.2K]

Answer: 0.00024\ m/s^2

Explanation:

Given

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