If its mass is 3.55×105 kg and the net braking force is 4.05×105 n , what is the airplane's acceleration? mastering physics

Explanation:

We can find the airplane's acceleration by using Newton's second law of motion, which states that:

where

F is the net force on the airplane

m is the mass of the airplane

a is its acceleration

The problem says that the force is a braking force, so this means that the airplane is slowing down, therefore the acceleration must be negative and we must put a negative sign in front of the force. Re-arranging the equation, we can find the acceleration:

not too sure thinking all accelerations are pointed down

the tires are rotating at 0.434 rpmlinear speed=45 m/sdiameter=0.550 mradius=0.275 mnow v= rωω= v/rω=45/0.275ω=163.6 rad/sω=163.6 rad/s (1rev/2π rad) (60s/1m)ω=1563 rpm