an aeroplane takes off from a runway of 500m. find the acceleration and take of velocity if it leaves the ground 10sec after the start
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Answer:
The required velocity of the plane when it just leaves the ground is 100 m/s.
Explanation:
In the above Question, the following information is given -
The length of the runway is 500 m.
The aeroplane leaves the ground 10 seconds
after the start.
The speed of the aeroplane while on the ground
>> (500 m / 10 s) = 50 m/s.
Now, Let us find the acceleration of the plane.
According to the Second Equation Of Motion
S = ut+ (1/2) at²
The plane is innitially at rest.
So, u = 0
500=(1/2) × a × 100
=> Acceleration = 10 m/s.
Now according to the First Equation Of Motion
v=u+at
=> v= 0 + 100
=>v=100 m/s.
So, the required velocity of the plane when it just leaves the ground is 100 m/s.
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