Questions
A machine gun fires a steady stream of bullets at the rate of n per minute into a stationary target in which the bullets get embedded. If each bullet has a mass m and arrives at the target with a velocity v, the average force on the target is
detailed solution
Correct option is C
F = rate of change of linear momentumIn 1 s, n60bullets are embedded. Momentum of each bullet is mv.∴ F = n60 mvTalk to our academic expert!
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Statement I : The familiar equation mg = R for a body on a table is true only if the body is in equilibrium.
Statement II : The equality of mg and R has no connection with the third law.
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