Question

A jet plane starts from rest with an acceleration of 3ms-2 and makes a run for 35s before taking off. What is the minimum length of the runway and what is the velocity of the jet at take off?.



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Answer 1

Answer:

Initial speed of airplane  u=0 m/s

Acceleration of the plane  a=3.2 m/s  

2

 and time taken t=3.28 s

Using formula, distance covered S=ut+  

2

1

​

at  

2

   

⇒   S=0(32.8)+0.5(3.2)(32.8)  

2

=1721.3∼1720m

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Explanation: