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3 years ago

The position of the plane as it ascends is given by r=[3ati-btj-(5d-ct)k]m, where a=2.50m/s, d=1.00km, b=0.050m/s, and c=75m/s.

Physics

1 answer:

enyata [817]3 years ago

4 0

Answer:

Explanation:

r = 3(2.50)ti - 0.050tj - (5(1000) - 75t)k m

r = 7.5ti - 0.050tj + (75t - 5000)k

a) r(0) = (0i, 0j, -5000k) m

v(0) = r'(0) = (7.5i, -0.050j, 75k)

a(0) = v'(0) = (0i, 0j, 0k)

b) r(30) = (225i, -1.5j, -2,750k) m

v(30) = (7.5i, -0.050j, 75k)

a(30) = (0i, 0j, 0k)

c) As velocity is not a function of time,

v(avg) = (7.5i, -0.050j, 75k)

d) As acceleration is not a function of time

a(avg) = (0i, 0j, 0k)

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