A jet engine develops a thrust of 270Ns when the velocity of the exhaust gases relative to the engine is 300ms-1. What is the mass of the material ejected per second?
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Correct Answer: Option C
Explanation:
Thrust = force x time
thrust = \(\frac{m(v - u)}{t}\) x \(\frac{t}{1}\)
270 = m(300 - 0)
m = 0.90kg
Thrust = force x time
thrust = \(\frac{m(v - u)}{t}\) x \(\frac{t}{1}\)
270 = m(300 - 0)
m = 0.90kg