Questions
A machine gun fires a bullet of mass 40 g with a velocity 1200 .The man holding it can exert a maximum force of 144 N on the gun. How many bullets can be fired per second at the most?
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a
Only one
b
Three
c
Can fire any number of bullets
d
144 x 48
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Correct option is B
Given, mb=40 g,vb=1200 ms-1F = 144 N∴ F=nma=mbνbt×n⇒ 144=40×12001000×n⇒n=3Similar Questions
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