12. 0 Question Details SerCP8 2.P025.ssm. My Notes Ask Your Teach A steam catapu

Question

12. 0 Question Details SerCP8 2.P025.ssm. My Notes Ask Your Teach A steam catapult launches a jet aircraft (from rest) from the aircraft carrier John C. Stennis, giving it a speed of 210 mi/h in 2.70 s (a) Find the average acceleration of the plane. m/s2 (b) Assuming that the acceleration is constant, find the distance the plane moves. Need Help? .Read- Tutor Show My Work (Optional) Submit Assignment Save Assignment Progress Home My Assignments Extension Request WebAssig 4 0 © 1997-2017 Advanced Instructional Systems, Inc All rights reserved

Explanation / Answer

Given,

v = 210 mi/h = 93.88 m/s ; t = 2.7 s

(a)We know that accleration is given by:

a = v/t = 93.88/2.7 = 34.77 m/s^2

Hence, acceleration = a = 34.77 m/s^2

b)from eqn of motion

S = ut + 1/2 at^2

S = 0 + 1/2 x 34.77 x 2.7^2 = 126.74 m

Hence, distance = S = 126.74 m

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