Questions
If force on a rocket having exhaust velocity of 300 m/sec is 210 N, then rate of combustion of the fuel is
a
0.7 kg/s
b
1.4 kg/s
c
0.07 kg/s
d
10.7 kg/s
detailed solution
Correct option is A
F=udmdt⇒dmdt=Fu=210300=0.7kg/sTalk 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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