Calculate the force exerted on a rocket when the propelling gases are being expelled at a rate of 1400 kg/s with a speed of 3.6*104 m/s.

Based from Newton's second law of motion, the net force exerted on an object is equal to the product of its mass and the acceleration.

F = m x a

From this item, we are given of the expulsion rate and the speed, which may also be multiplied with each other in order to determine the net force.

F = (1400 kg/s) (3.6 x 10^4 m/s)

Simplifying,

F = 50400000 N

In scientific notation,

F = 5.04 x 10^7 N