Question

if a four engine jet accelerates down the runway at 2.0m/s^2 and one of its engines suddenly fails how much acceleration will the remaining three produce

Answer 1

If one of the four engines suddenly fail, so this means that we only get 3 / 4 of the original force. Since force is the product of mass and acceleration and mass is constant, therefore we get 3 / 4 of the original acceleration.

So the remaining acceleration is:

a = (2.0 m/s^2) * (3 / 4)

a = 1.5 m/s^2