Questions
If speed and density of a liquid coming out of a cylindrical pipe is increased to three times, then the force required to hold the pipe becomes
a
3 times
b
9 times
c
27 times
d
6 times
detailed solution
Correct option is C
F=ma=ρVa=ρAlvt=ρAvlt=ρAv2⇒F∝ρv2Talk 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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