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Anni [7]
3 years ago
11

A jet plane is cruising at 300 m/s when suddenly the pilot turns the engines up to full throttle. After traveling 4.0 km, the je

t is moving with a speed of 400 m/s.
What is the jet's acceleration, assuming it to be a constant acceleration?


I got :

a =
8.8
m/s2

Is your answer reasonable? Explain.
Physics
1 answer:
jenyasd209 [6]3 years ago
7 0
<h2>The answer got is reasonable.</h2>

Explanation:

We have equation of motion v² = u² + 2as

Initial velocity, u = 300 m/s  

Acceleration, a = ?

Final velocity, v = 400 m/s  

Displacement,s = 4 km = 4000 m

Substituting  

v² = u² + 2as

400² = 300² + 2 x a x 4000

a = 8.75 m/s² = 8.8 m/s²

The acceleration is 8.8 m/s²

The answer got is reasonable.

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Hope this helps! god bless :)

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