- #1
FilthyOtis
- 15
- 0
Homework Statement
A Jet fighter plane is launched from a catapult on an aircraft carrier. It reaches a speed of 42 m/s at the end of the catapult, and this requires 2.0s. Assuming the acceleration is constant, what is the length of the catapult?
Am I looking at this correctly?
final velocity(Vf) is 42 m/s
initial velocity(Vi) is 0 m/s
time(t) is 2.0 s
acceleration(a) is 21 m/s^2 (I'm assuming this because if it started from rest and after 2 seconds is traveling 42 m/s than the acceleration must be half of that? or am I way off? )
Here's my solution, Vf^2 = Vi^2 +2ad
(42 m/s)^2 = 0 + 2(21 m/s^2)d
d = 42^2 / 42 = 42m
Am I doing this correctly? Thank you for any help in advance.
- Otis