A jet makes a landing traveling due east with a speed of 120 m/s .

Physics

1 answer:

vesna_86 [32]3 years ago

7 0

Average acceleration over a time interval lasting $\Delta t$ is

$a_{\rm ave}=\dfrac{\Delta v}{\Delta t}$

where $\Delta v$ is the difference in the jet's final and initial velocities. It's coming to a rest, so

$a_{\rm ave}=\dfrac{0-120\frac{\rm m}{\rm s}}{13.5\,\rm s}=-8.9\dfrac{\rm m}{\mathrm s^2}$

so the average acceleration has magnitude 8.9 m/s^2 and is pointing West (the direction opposite the jet's movement, which should make sense because the jet is slowing down).

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zubka84 [21]

Answer:at 21.6 min they were separated by 12 km

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A lab cart is loaded with different masses and moved at various velocities

Sedaia [141]

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aliya0001 [1]

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