Question

A Plane crashes into the side of a mountain. If the crash took place over 9

minutes and the planes velocity before the crash was 2000 yards per
second, what is the acceleration of the plane? *

Answer 1

Given parameters:

Duration of crash = 9min

Velocity before crash = 2000 yards per second

Unknown:

Acceleration of the plane = ?

Solution:

Acceleration is the change of velocity with time.

Acceleration =
`(V - U)/(t)`

where v is the final velocity

u is the initial velocity

t is the time taken

We need to convert the time into seconds from min;

60s = 1 min

So, 9min = 60 x 9 = 540s

So input the parameters and solve;

Acceleration =
`(2000 - 0 )/(540)` = 3.7yards/s²

The acceleration of the plane is 3.7yards/s²