Question1a jet plane lands with a velocity of 112 ms and

Reference no: EM13350735

Question1

A jet plane lands with a velocity of +112 m/s and can accelerate at an utmost rate of -5.50 m/s^2 as it comes to rest. From the instant it touches the runway, what is the least time needed before it can come to rest?

Could this plane land on a small tropical island airport where the runway is .8000 km long?

What is the smallest distance required to stop the plane?

Question2

A certain elevator cab has a total run of 210 m and an utmost speed is 321 m/min, and it accelerates from rest and then back to rest at 1.10 m/s2.

(a) How far does the cab move while accelerating to full speed from rest?

(b) How long does it take to make the nonstop 210 m run, starting and ending at rest?

Question3

The barrel of a rifle has a length of 0.898 m. A bullet leaves the muzzle of a rifle with a speed of 616 m/s.

What is an acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have constant acceleration, but constant acceleration is to be supposed for this problem.

Reply in units of m/s2.

Reference no: EM13350735

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