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Physics, 26.03.2020 20:19 precioussmith76
2. Consider a situation where change in momentum come from a change in mass rather than that
coming from a change in velocity of an object: rocket propulsion. The propelling gases exert force
on the rocket. The gases are expelled at a rate of R = 1300 kg/s with a speed of v = 4.5 × 10^4
m/s.
a) What is the mass expelled in time ∆t. Label this mass ∆m.
b) How much momentum does the mass carry, in terms of ∆t, R, and v.
c) Use the relationship between the average force and change in momentum to obtain the
expression for the average force in terms of R and v and calculate its value
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