Question

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

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  = $\frac{V - U}{t}$

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 = $\frac{2000 - 0 }{540}$  = 3.7yards/s²

The acceleration of the plane is 3.7yards/s²