# physics

posted by
**jc**
.

A jet plane lands with a speed of 101 m/s and can accelerate at a maximum rate of -4.60 m/s2 as it comes to rest.

(a) From the instant the plane touches the runway, what is the minimum time needed before it can come to rest?

___s

b)What is the actual minimum distance needed to stop the plane?

___km