   Chapter 2, Problem 25P

Chapter
Section
Textbook Problem

A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 175 mi/h in 2.50 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance the plane moves.

(a)

To determine

The average acceleration of the jet air craft.

Explanation

Given info:

The initial velocity of the jet air craft is 0.

The final velocity of the jet air craft is 175mi/h.

The time interval is 2.50s.

Formula to calculate average acceleration is,

a¯=vfviΔt

• a¯ is the average acceleration
• vf is the final velocity
• vi is the initial velocity
• Δt time interval

Substitute 175mi/h for vf, 0 for vi and 2.50s for Δt to find a¯

(b)

To determine

The distance travelled by the jet air craft.

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