Question

An airplane is moving at a speed of 75m/s as it lands on a runway. if the runway is 500 m long what is the acceleration of the plane as it slows to a stop

Answer 1

-5.625 m/s^2

Step-by-step explanation:

Use the kinematic equation
`v_(f)^(2) = v_(o)^(2) + 2ad`

Substitute the values and solve for a.

0^2 = 75^2 + a 2 (500)

0 = 5625 + 1000a

-5625 = 1000a

-5.625 = a