Question

An aeroplane needs to reach a speed of 324 km/hr before it can take off. It starts from rest and the engine of aeroplane produces a constant acceleration. If it spends 30 s on the runway then the minimum required runway length is -
A. 1350 m
B. 675 m
C. 337.5 m
D. None of these

Answer 1

Correct Answer - A
`S=(U+V)/(2)xxt, S=(0+90)/(2)xx30,S=1350m`