CBSE Class 9 Answered
Q9. A machine gun is mounted on a flat rail road car. The gun is firing bullets at the rate of 10 bullets per second each of mass 10 g. The bullets come out with a velocity 500 m/s. relative to the car. Calculate the acceleration of the car at the instant when its mass is 200 kg. Also calculate the force at the instant.
Asked by sbidipak | 05 Jul, 2017, 07:34: PM
Expert Answer
Answered by Yashvanti Jain | 06 Jul, 2017, 12:05: PM
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