Questions
A rocket of initial mass 6000 kg ejects mass at constant rate of 200 kg/sec. with constant relative speed of 800 m/sec. The acceleration of the rocket after 5 sec is (neglect gravity)
detailed solution
Correct option is D
After 5 sec mass of the rocket 6000−5×200=5000kga=udmdtm=200×8005000=32ms−2Talk to our academic expert!
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In the figure given the position-time graph of a particle of mass 0.1 kg is shown. The impulse at t = 2 s is :
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