Laws Of Motion Question 193
Question: In a rocket of mass 1000 kg fuel is consumed at a rate of 40 kg/s. The velocity of the gases ejected from the rocket is $ 5\times 10^{4}m/s $ . The thrust on the rocket is[MP PMT 1994]
Options:
A) $ 2\times 10^{3}N $
B) $ 5\times 10^{4}N $
C) $ 2\times 10^{6}N $
D) $ 2\times 10^{9}N $
Show Answer
Answer:
Correct Answer: C
Solution:
Thrust $ F=u\ ( \frac{dm}{dt} ) $
$ =5\times 10^{4}\times 40=2\times 10^{6}N $
