Question
(a) At what speed would a $2.00 \times 10^ \textrm{ kg}$ airplane have to fly to have a momentum of $1.60 \times 10^9 \textrm{ kg m/s}$ (the same as the ship’s momentum in the problem above)? (b) What is the plane’s momentum when it is taking off at a speed of $60.0 \textrm{ m/s}$? (c) If the ship is an aircraft carrier that launches these airplanes with a catapult, discuss the implications of your answer to (b) as it relates to recoil effects of the catapult on the ship.

a) $8.00 \times 10^4 \textrm{ m/s}$

b) $1.20 \times 10^6 \textrm{ kg m/s}$

c) The ship will recoil with the same momentum, but it's recoil speed will be much less since it is much more massive.

Solution Video