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1. The catapult on an aircraft carrier can take an aircraft from 0 to 182 mph (t

ID: 2275544 • Letter: 1

Question

1. The catapult on an aircraft carrier can take an aircraft from 0 to 182 mph (the launch speed) in 7 seconds, at which time the aircraft launches. Express the launch speed in SI units (meter-kilogram-second system - not km/hr).


2. The catapult on an aircraft carrier can take an aircraft from 0 to 83.1 m/s in 14.5 seconds, at which time the aircraft launches. What is the acceleration of the aircraft when it launches?


3. An aircraft starts at rest and is accelerated at 10.4 m/s2 for 14.8 seconds, at which time the aircraft launches. What is the distance traveled from the starting point to the launch point? Assume the acceleration is constant.

Explanation / Answer

1


Speed = 182 mi * 1609.344 m/mi * 1hr/3600s
V= 81.34 m/s
= 81 m/s


2


a = ( Vf - Vi ) / t
a = [ (83.1 m/s) - (0.0 m/s) ] / (14.5 s)
a = [ 83.1 m/s ] / (14.5 s)
a = 5.73 m/s^2


3

a = 2d/t