Air enters an aircraft engine at a velocity of $180 \mathrm{~m} / \mathrm{s}$ with a flow rate of $94 \mathrm{~kg} / \mathrm{s}$. The engine combustor requires $9.2 \mathrm{~kg} / \mathrm{s}$ of air to burn $1 \mathrm{~kg} / \mathrm{s}$ of fuel. The velocity of gas exiting from the engine is $640 \mathrm{~m} / \mathrm{s}$. The momentum thrust (in $N$ ) developed by the engine is
(A) 43241
(B) 45594
(C) 47940
(D) 49779
Air enters an aircraft engine at a velocity of $180 \mathrm{~m} / \mathrm{s}$ with a flow rate of $94 \mathrm{~kg} / \mathrm{s}$. The engine combustor requires $9.2 \mathrm{~kg} / \mathrm{s}$ of air to burn $1 \mathrm{~kg} / \mathrm{s}$ of fuel. The velocity of gas exiting from the engine is $640 \mathrm{~m} / \mathrm{s}$. The momentum thrust (in $N$ ) developed by the engine is
(A) 43241
(B) 45594
(C) 47940
(D) 49779