Question

a jet plane starts from rest and acquire final velocity of 720 km/hr .if the length of runway be 1km and the plane be uniformly accelerated on the runway ,then calculate the acceleration of jet plane.

Answer 1

Hiii...
Here is your answer...

Solution:-
It's given that,
Initial velocity=0
Final velocity=720km/h
$= > 720 \times \frac{5}{18} \\ = > 200$
=>200m/s
Distance=1 km
$= > 1000m$
Acceleration=?

By using equation,that is:-
$= > {v}^{2} = {u}^{2} + 2as \\ = > {(200)}^{2} = {(0)}^{2} + 2 \times a \times 1000 \\ = > 40000 = 2000a$
$= > a = \frac{40000}{2000} \\ = > a = 20$
Hence,the Acceleration=20m/s^2

Answer 2

Answer:

hope you understand...

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