Question

A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 195 mi/h in 2.90 s. (a) Find the average acceleration of the plane.

Answer 1

Answer:

The average acceleration of the plane is 0.0186 $\frac{mi}{s^{2} }$

Explanation:

The acceleration of an object is a magnitude that indicates how the speed of the object changes in a unit of time. That is, acceleration is a magnitude that relates changes in speed with the time it takes to occur.

The average acceleration of an object is calculated using the following expression:

$acceleration=\frac{change of speed}{time}$

In this case:

• change of speed=$195 \frac{mi}{h} *\frac{1 h}{60 minutes} *\frac{1 minute}{60 s} =0.054 \frac{mi}{s}$
• time= 2.90 s

Replacing:

$acceleration=\frac{0.054 \frac{mi}{s} }{2.90 s}$

and solving you get:

acceleration=0.0186 $\frac{mi}{s^{2} }$

The average acceleration of the plane is 0.0186 $\frac{mi}{s^{2} }$