Question

11 ) What is the acceleration of an aeroplane
taking off from landing field has to run 700 metres
if it leaves the ground in 10 seconds from the
start? | ​

Answer 1

Answer:

Assumption: The aeroplane is initially at rest.

We know: s = u*t + a*t^2 / 2, where,

s is the distance travelled (=700 m in this case)

u is the initial velocity (0 in this case)

a is the acceleration (to be calculated)

t is the time taken ( 10 seconds in this case) to travel the distance s.

So, applying the formula, we have :

700 = (0 * 10) + a * 10^2 / 2

Or, 50 a = 700, or

a = 14 m / sec ^2

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